14 (debut) - 16 (ending)(E7); 30(AO)
Gekkostate (crew members)
Renton Thurston (レントン・サーストン Renton Sāsuton) is the main male protagonist of the anime and manga Eureka Seven. He begins the story as a immature, childish, and naïve young boy, but grows up into a strong-willed and brave man. To many, he is the person destined to change the doomed fate of humanity. He falls in love with and marries the female protagonist, Eureka. In the sequel, Eureka Seven: AO, he is the father of Ao Fukai.
Renton has brown hair and blue eyes. At age 14, he was average in height and was not as defined compared to the rest of the adults on the Gekkostate. He has light tanned skin, and his initial baby face in the first and second season reflected his immaturity and naivety. In seasons three and four, he noticeably grows taller and mature, which is noticed by several members of the Gekkostate on numerous occasions. By the time he is 16, he has matured considerably and nearly overtowers Eureka, who had been about the same height as him.
In the sequel, at the age of 30, Renton has grown at about six feet and leaner. His face has leveled out and his voice has deepened. The front set of his brown hair has turned white, which remains unexplained. In addition, he is more serious and calm that he was before, but he still puts the lives of his loved ones before his own.
Renton Thurston is the son of the late military hero Adroc Thurston and co-pilot (later becomes pilot) of the Nirvash TypeZERO. He is a very outgoing and emotional person possessing strong ideals and compassion yet is naive and tends to jump into matters before understanding what's going on. Before joining Gekkostate, he lived with his grandfather Axel Thurston in Bellforest, attending school and learning to be a mechanic in Axel's shop. He was heavily influenced by his sister Diane Thurston and believes that he will see her again one day. Though somewhat of a celebrity, being the son of a savior, Renton feels uncomfortable being the son of Adroc Thurston. His surname is recognized everywhere he travels, and he constantly feels as if he lives in his father's shadow. Renton believed Adroc was a poor father and abandoned his family for his research.
In season 1 and 2, Renton is a very outgoing and emotional person possessing strong ideals and compassion yet is naive and tends to jump into matters before understanding what is going on but was willing to protect his loved ones. He was childish, immature and shy about girls. While in the third season, Renton is shown to mature a bit. In season four Renton matures even further, coming into his own as a father to the kids. In AO he became mature, calm, and serious but is a loving husband and father. He is a strong man who is willing to sacrifice his life and happiness to protect his family, but despite his major changes, he still has a soft spot, especially towards his wife and children.
Renton is the son of Adroc Thurston, who was a military scientist specializing on research of the Scub Coral. His mother died giving birth to him and his father disappeared after stopping the First Summer of Love from destroying the planet when he was about four-years-old. After his father's "death", Renton was raised by his older sister, Diane, and grandfather. However, two years later, his sister also disappeared to continue with their father's research. When Eureka Seven begins, Renton is 14-years-old and lives a very much normal life. He lived with his grandfather, went to school and was learning to be a mechanic. However, he was bored with his life and dreamed of becoming a member of the Gekkostate, so that he can experience fun adventures. Due to being the son of Adroc Thurston, who is thought to have died as a hero for saving the world from the First Summer of Love, Renton is subjected to unwanted attention for his family name and resents his father because he believed Adroc had abandoned his family for his research. One fateful day, however, his young life changes forever. After the Nirvash accidentally crashed into Renton's room next to Axel's garage, Renton met Eureka and fell in love with her at first sight. Renton's unusual link with Nirvash, responsibility over his father's Amita Drive, and his desire to be with Eureka motivated him to join Gekkostate. He came to Gekkostate to follow Holland Novak, his idol, and to be with Eureka at all costs in hopes she will come to love him back. His time with Gekkostate had been a difficult transition as he was subject to many pranks from crew members (especially Eureka's adopted children) and abuse from Holland. He eventually comes to learn of the origin of Gekkostate and the atrocities that Holland, Eureka and the others are atoning for. Renton stayed with Gekkostate to train and in time his skill as a LFO pilot developed on par or above Eureka. That development affected a rift with Eureka as he desires her to return his love for her. His love for Eureka is not secret; he had confessed to her the day after meeting her and everyone on board Gekko interferes in his love life. The crew members constantly want to know his progress and cheer him on. However, Eureka initially did not reciprocate his feelings due to her lack of understanding emotions and human nature. His relationship with both Nirvash and Eureka develops into a deep emotional and mental link that is noticed by Mischa. Once he understands how his presence affects Eureka and the Nirvash, he vows to protect her no matter what.
Renton has a special link with the Nirvash along with Eureka. Usually, both he and Eureka are necessary to activate the Amita drive, awakening Nirvash and allowing access to the power responsible for the Seven Swell phenomenon. Specifically, when Renton and Eureka achieve emotional agreement and wish for something, Nirvash reciprocates with the power of the Amita drive. If their feelings are in disconnect, the Amita drive cannot activate. However, there are some occasions where Eureka is present yet unconscious, and Renton alone convinces Nirvash to awaken. Renton summons the powers of Amita drive several times throughout the series. His very first time was triggered by an overwhelming need to protect Eureka during his delivery of the Amita drive to Nirvash and Gekkostate, resulting in the second Seven Swell phenomenon ever (the first being Adroc's disastrous experiment with Eureka).
Renton and Eureka's primary antagonist early on is Anemone. During their battles with her, Renton usually ends up using the Amita drive. His first encounter with Anemone was when Gekkostate investigated an Aerial Coralian. He and Eureka traveled to it, and while battling Anemone in her TheEnd LFO, all three enter the Zone within the Coralian. There, all three share a strange "dream", with Eureka trying to find Renton, and Renton eventually meeting Anemone, who tries to kill him. As he is rescued by Eureka, he catches a glimpse of his sister before the dream ends. In the aftermath of the Aerial Coralian's disappearance, Renton and Dominic encounter each other, and although initially distrustful of each other, manage to cooperate to find medicine for the strange pain afflicting Eureka and Anemone. When the military and Gekkostate race to rescue Anemone and Eureka, respectively, Renton's wish to protect Eureka activates Nirvash, flooding the area with trapar, and he pilots the Nirvash back to the Gekko.
Several days later, while the damage the Gekko took during the battle is being repaired in FAC-51, Renton meets Eureka and Anemone again within a house in a dream/hallucination. This time, Renton, in the form of Nirvash, defends Eureka from Anemone, in the form of TheEnd. Renton and Holland are often at odds with each other, with Holland being protective of Eureka and refusing to accept Renton as Eureka's true partner, often blaming Renton for Eureka's troubles, and Renton not understanding Holland's apparently cold-hearted actions. This is especially apparent during the incident where Eureka is nearly absorbed by the Scub within FAC-51. Holland blamed Renton for Eureka's deteriorating mental state because Eureka was troubled that Nirvash no longer talked to her and that her ability to pilot Nirvash was suffering compared to Renton who was improving.
Meanwhile, Gekkostate finds an old miner within FAC-51, who is a great admirer of Renton's grandfather. When the miner discovers that Gekkostate has the Nirvash, he betrays them and unsuccessfully attempts to hijack it by holding Renton at gunpoint. This leads to Holland brutally beating him because he blamed Renton for taking the Nirvash without permission, even though it wasn't his fault. When Eureka acknowledges her helplessness and offers to let Renton be Nirvash's pilot, he is still too stunned by the betrayal of the miner and his crew mates, and shrugs her off. These factors, along with others unrelated to Renton, eventually lead to Eureka nearly being absorbed by the Scub. Renton's desperation to save the injured Eureka triggers another Seven Swell Phenomenon, inadvertently saving the Gekko, which was trapped by military forces. Holland blames Renton for Eureka's condition and bans him from piloting the Nirvash again. To heal Eureka, Holland accepts a mission to rescue a Vodarac high priest - only Vodarac priests can heal injuries related to the Scub. Renton, ignorant of this fact and the fact that Holland regards Eureka more important than his own life, accuses Holland of not caring about Eureka. Renton later discovers that he is mistaken and rescues Holland when Holland's own rescue attempt is botched. In the process, however, overwhelmed by intense hatred towards Holland and frustration that he doesn't know anything, he reaches a "rider's high", losing the ability to control himself, and brutally destroys the enemy KLFs.
By the time he returns to reality and sees the dismembered arm of a pilot he killed, he realizes that he has been killing people every time he destroys a KLF. Disturbed by this revelation and troubled by the crew's apparent lack of concern for his troubles and being emotionally apart from Eureka, Renton comes to believe he is hated by everyone and decides to leave the Gekko. After traveling around for a couple of days, he encountered Charles and Ray Beams, former squad members of SOF with Holland, and they invite him to stay with them after he says he has no family. During his time with them, he learned that his actions, no matter how good the intentions were, may end up doing more harm than good. Charles and Ray were glad to see that Renton had such a kind heart and began to love him. Renton learned to love the couple in return, and the couple proposed to adopt Renton as their son because Ray could not bear children. However, Charles learned that Renton came from Gekkostate, and Renton learns that Charles and Holland have a serious score to settle, which leads to a complicated altercation, leaving Renton confused and in the middle. He was faced with three options: stay with the Beams and become their son; return to Gekkostate; or run away from both. He ultimately left the couple to return to Gekkostate to simply warn them about the Beams' intentions.
On the way back, he encounters William Baxter, who by narrating a tale about his wife and asking Renton if there was anyone he wanted to be with should the world end, which hardened his resolve to see Eureka again. While Renton was away, Eureka took over his duties and realized that she missed Renton. After Holland said that Renton was less important, Eureka left to go find him herself. She left the Gekko on a ref board just minutes before Renton's return, only to find herself in dangerous situation where she encounters Charles and Ray who are part of a large military fleet. Renton stood up against Holland, who ordered him to leave the Gekkostate and refused to listen to his warnings on the Beams, and said he never wants to be a member of the Gekkostate again and he only came back to protect Eureka. When he learned she was in danger, Renton launched on Nirvash and rescued Eureka.
Upon their reunion, they confessed their feelings for each other and said that their time apart helped them realize that being together is the most important. Since Renton knew that his previous way of fighting lead to the deaths of people, Renton took a more merciful method of combat by simply disarming enemy units. Nirvash responded to these feelings by releasing an energy wave that disabled every machine in the sky when Renton and Eureka shared this similar feeling. Renton and Eureka were sent to the brig after returning to the Gekkostate for leaving the ship and engaging in combat without permission. Moondoggie gave Renton, Eureka, and the kids bulletproof vests, gasmasks and a gun while they stayed in the brig because Holland was expecting Charles and Ray. Charles and Ray managed to infiltrate the Gekko and engaged Holland and Talho. During the infiltration, Ray was enraged with Eureka for having the three children call her "mama" and wanted to kill her. Ray's animosity stems from the blame she places on Eureka for making her sterile. Renton, however, was looking after Eureka and pleaded with Ray to stop. Holland and Charles fought in the hangar bay until Charles died of excessive bleeding from multiple gunshot wounds. Ray kissed Charles and detonated a bomb in his body. Ray escaped back to her ship and later tried to destroy Gekkostate again. Her second attempt failed and she paid the ultimate price of death. Confused over the events, Renton blamed himself for the Beams' deaths and feels he is unable to do anything because no one tells him anything. Eureka comforts him as she says she trusts him, and they then promise to tell each other everything. Eureka and Renton cooked and cleaned the entire ship to repay everyone for protecting them. Renton initially still didn't plan to rejoin the Gekkostate and only wanted to see Eureka again, but he decided to return for good when everyone assured him that he is a valued member of the crew, but Talho ruined the moment by explaining the true nature of Eureka — she is a Coralian. She warns him that as long as he remains with the Gekkostate and Eureka, he is an enemy to the military, but he chooses to stay. Eureka admits to him that she didn't tell him sooner about her origins because she was afraid he would reject her. However, Renton did not care about it because she has been special to him since the day he first met her. After all this, Renton becomes a respected member of the Gekko, with his relationship with his crew mates becoming that of a familial one. He even earns Holland's trust as he matures and his skills as an LFO pilot improve, and he finally accepts that Renton was always meant to be Eureka's partner. Because Eureka is developing feelings of guilt and shame for her past sins, she wished to no longer fight and Renton takes over her role as Nirvash's pilot, and he constantly consoles her as she struggles to deal with her emotional problems.
During a film of the origins of the Nirvash, Renton discovered that his own grandfather had been instrumental in the fabrication of the lifting board that it used for trapar surfing, and also how Eureka came to be involved with the Nirvash. In a conversation, Eureka revealed she knew Adrock in his final days before he "died." Renton was upset over the matter, but it left Eureka confused. Renton felt he couldn't communicate with her and looked to adult magazines for advice. Hilda caught him reading the book and suspected he was thinking about sex. Renton knew it looked bad and even said, "It's not what you think!" After Holland ran after Renton and roughed him up, thinking he wanted to have sex with Eureka, he realized he was trying to communicate with Eureka and find out about his father. Eureka revealed to Renton that Adrock released the Amita Drive during the Seven Swell event and vanished. Before he was gone, he said he was doing it to protect his family. Renton always thought Adrock did not care for his family, but knowing his father lost his life thinking about his family gave Renton closure.
During a mission to the Vodarac tribe to get past the Great Wall, Renton, Eureka, and the kids are separated from Holland and the others. They meet with a Vodarac priest, Norb, who introduces them to another Coralian, Sakuya. Soon after, they are attacked by Anemone and quickly enter the promised land to escape. They realize that the promised land is actually Earth and are stuck when Eureka is unable to communicate with Nirvash, which frustrates them and causes a temporary rift between Renton and Eureka. They wandered around Earth for some time, slowly heading toward the Coralian Scub Command Center. Eureka's scars eventually started to turn green and Coralian features started to appear on her body in response to the Scub Command Center. Afraid Renton would reject her if he found out about the changes, she hide them for a short time. When he does find out, she ran away but he chased after her and comforted her. Renton went as far as to injure his own arm to empathize his acceptance of Eureka's changing body, and his wound was infected. He developed a fever and began hallucinating for a while. During that time, Eureka tended to him, her body changed further, growing butterfly-like wings. When Renton recovered and saw Eureka was nervous over her form, he comforted her by saying that she looked prettier with the wings, which prompted her to finally tell Renton that she loved him. When they finally reach the Scub Command Center, he encounters his big sister, Diane, and chases after her, leaving Eureka and the kids behind. Inside a large library, created by the Scub, with a small group of people constantly reading about the Scub Coral, Diane tells him about the history of the Scub Coral and the hostility the humans harbor towards it. She also warns him that the Scub Coral is slowly waking up, and when the Scub Command Center is destroyed, the Limit of Questions will occur. Renton then decides to help the humans understand that the Scub Coral wants co-existence with them, and believes his relationship with Eureka is proof that humans and the Scub Coral can live together peacefully. He rushes back to Eureka and the kids, and finds that his father has been watching them while he was away. Renton is able to express his forgiveness towards his father and vows to protect the Scub Command Center before leaving.Immediately afterwards, Anemone appeared to destroy the Command Center. Renton, along with Eureka and the kids, boarded Nirvash and fought against her in order to protect the Scub Command Center. When they discovered Anemone's feelings of pain and sadness, they decided to save her. While attempting this, Dominic appeared and TheEND changed through Anemone's joy. All seemed at peace until the Ginga arrived to destroy the Scub Command Center. At the same time, the Gekko appeared to rescue Renton, Eureka, and the kids. Holland fought against his brother in order to end his madness, but Dewey surprisingly ended his life. Dewey's suicide activated the collar devices that Eureka and Anemone have always worn, which would make either Anemone or Eureka as the new destructive Command Center. Realizing that her time with Renton was over, Eureka apologized to him over their failed dream of being together forever. She managed to avoid the event by rejecting the full transformation, but this still left her encased in a Coralian storm event with herself as the center. Renton was depressed at losing Eureka so suddenly, but Holland snapped some sense into him by reminding the boy of his promise to always protect Eureka and she is the one he loves. Now filled with determination to not let go of his dream of being together forever with Eureka, Renton said he would rescue Eureka on his own. Before boarding the Nirvash, he bid farewell to the rest of the Gekko members and requested that the kids stay with his grandfather. Renton pleaded with Nirvash to help him save Eureka, and it reacted to Renton's strong feelings to protect Eureka by changing into it's true form.Nirvash's armor shattered, revealing a very different, evolved form of the archetype, with a single blue, human eye (the same color as Renton's eyes). He used a destructive cannon to eliminate the Coralian antibodies to reach to the center of the Coralian storm. There, Nirvash broke through, and Renton entered the center and reunited with Eureka. She is overjoyed that he really came to save her and he reminded her of his promise to always protect her. She tells him that she can never go back, but he says that she is making a choice and so is he; he has chosen to live with her, even if he can no longer be human. Renton asks Eureka to merge with the Scub Coral with him, and she agrees without hesitation. They kissed for the first time while Nirvash broke forth through the Coralian storm.
The Command Center opened because of Nirvash, and the LFO's right eye opened to become pink (the same color as Eureka's coralian eyes). Nirvash emitted a powerful energy wave that etched "Renton loves Eureka" on the moon and a seven swell-like event that Gonzy said explained it as the "Second Summer of Love." Nirvash thanked Renton and Eureka for the experiences, and as it parted ways with them, it asked them to set an example to the world by living together and bringing forth a new evolution (or in simple terms, have Human-Coralian hybrid children). Renton and Eureka decide to return to Earth together and kiss a second time as they return to the planet. A year later, Axel who is now taking care of the kids, examines the documents that confirm Eureka and the kids took on the last name "Thurston." Afterwards, Renton and Eureka are shown on the shoreline of a lake in a forest together, holding hands.
Eureka Seven AOEdit
A few years later, Renton and Eureka were awaiting the birth of their first biological child, revealed to be a girl. Around this time, some of the Scub Coral began vanishing, prompting them to investigate. They used the Gekko as part of an experiment to see what was happening; Eureka was sent to 2025, where she met their future son, Ao. However, he was later reunited with his beloved when Ao helped return her home. Soon after, Eureka gave birth to their daughter; however soon after the birth, the baby turned to stone and died, leaving them devastated. Around this time, Renton was being hailed as a genius for combining his knowledge of LFOs and Scub Coral, and thus, creating the first IFO. Devastated by the death of his baby daughter and enraged to find out that the high level of trapar from the Scub Coral was responsible for her death, Renton decided to destroy the Scub Coral, especially when Eureka became pregnant with their son. As the baby's due date was approaching, Renton and Eureka were attacked by secrets, and in order to save her and his unborn son, he sent her into the past. He said it was the only way to ensure that the child would survive. Eureka ended up in the year 2012 and gave birth to Ao, while Renton stayed behind to destroy the Secrets and prevent them and the Scubs from entering the timeline his son ends up being raised in.
Renton is shown in the second Opening for Eureka Seven: AO, although only seen from behind. He finally made an appearance near the end of episode 22 in Eureka Seven: AO. He is shown in a different world in the year 12021 near New York City; he comments that it's always the same no matter how far he goes and how many worlds he sees, and how "this" and many worlds have perished when the Scub Coral reached its' metabolism. Just then 7 pillars of light (similar to the one seen in episode 16) erupt into the Seven Swell Effect, and Renton calls to Nirvash, which now resembles an armored version of the Spec3 (based on the core physical structure), and tells him that Eureka is calling them, and with that they can put an end to everything and bring her back from that sky. It is revealed that he has been traveling to different universes looking for Eureka.
Renton enters the seven swell in the Nirvash and is transported to AO's world. Ao witnesses the Nirvash emerging on his side and pursues in the Nirvash Neo. Renton notices that this world has Scub Coral too, destroying a large Scub plant in one shot. The quartz flies out of the destroyed plant and is immediately absorbed by the Quartz gun. Renton notices his pursuers and immobilizes the Nirvash Neo, using his ref board to land on the LFO, and uses the security code to open the cockpit and demands to know the whereabouts of its original pilot, Eureka. He notices Ao's Coralian eyes and realizes that Ao is his son just as the Pied Piper team contacts Ao, telling him that Eureka has appeared on the Triton. Renton asks Ao to bring him to Eureka. Aboard the Triton, Renton and Eureka are finally reunited (although Eureka is in holographic form). The two speak briefly about her situation and about Ao, and Eureka tells Renton that Ao is just like him and has what he seeks. Eureka once again disappears. Ao and the crew of the Triton realize that their visitor is Renton Thurston, Eureka's husband and Ao's father.
Ao attempts to punch his father, but is held back by Ivica, who asks Renton about Eureka's situation. Renton explains that the Scub Coral, aiming to avoid the Limit of Questions, sought a way to travel between universes and used Quartz to achieve this. Renton speculates that Eureka must have turned herself into Quartz when she attempted to dispose of the dangerous large collection of Quartz, and she wished only to be transported to a different time and place, which caused her to be unable to materialize at a particular destination. Ivica and Rebekah tell Renton of the Quartz Gun and its ability to alter the course of history when it is used, and Ao tells him that there is enough charge left for one shot.
On the island of Okinawa, Renton meets the man who raised Ao, and thanks him for taking care of Ao and Eureka. Ao asks Renton what he was doing while Eureka was missing for 10 years, and Renton responds that for him Eureka has only been gone for a short time. Renton explains to Ao that they had used the Gekko to travel to Ao's world, learning that the Scub Coral had travelled deep into this world's past in an attempt to evade the Secrets, who were produced naturally by the world to prevent the Scub Corals' invasion. The secrets pursued the Scub Coral through their holes in time, causing the phenomena known as "Scub Bursts". In the future, mankind in Ao's world would become extinct due to these Scub Bursts. Eventually the secrets considered him and Eureka as enemies too (possibly due to Eureka being a Coralian herself). Renton and Eureka, who was at this time pregnant with Ao, were attacked by a large number of secrets. To save Eureka and their unborn child from the Secrets, Renton forced her to enter the pillar of light to be transported to another time, telling her that he would stay and kill all the Scubs, and that he didn't want to make her kill her own kind. Eureka emerged in Ao's time where the she fell from the sky, was saved by the Okinawan people, and soon gave birth to Ao. Ao asks Renton why he's trying so hard to destroy the Scub, to which Renton replies that it's his responsibility as an adult. In the past they fought to protect the Scub Coral and inadvertently caused the Scub Bursts to happen. Renton then leaves quickly, telling Ao that he's going back to the future, entering the Nirvash and taking the Quartz gun.
Ao pursues Renton in the Nirvash Neo. Renton apologizes to Ao, telling him that he will use the Quartz gun to destroy the first Scub Coral in this world, erasing them from all the timelines effectively, returning everything to normal in the process. Ao angrily tells him that there is only one shot left, and his plans will strand Eureka in her state of limbo between worlds. Renton replies that Eureka is prepared for this outcome, and father and son begin to battle in each of their "Nirvash". Truth speaks to Ao, apparently having become the archetype of the Nirvash Neo after being hit by the Quartz gun before. Renton angrily attacks the Nirvash Neo, asking why that machine has an archetype. He tells Ao to get out of that Nirvash, and that there should not be another one with an Archetype. Ao fires back at his father, and the Quartz gun is dropped. The gun begins to fly high into the air, and both of them pursue it, continuing to battle.Ao says that gramps told him about his sister, and Renton is shocked. Renton and Eureka's daughter turned to stone 3 months after she was born and died; it is shown that he still mourns the loss of his daughter, as he is seen crying when she is mentioned by Ao. In a high trapar density environment, the Human and Coralian cells in the child rejected each other. Because of this, they chose Ao's world, which Eureka discovered by accident, because of it's lack of Trapar in the environment, their child would be able to survive. They tried to destroy any Scub Coral that did exist there in order to protect him. Ao thanks his father for going so far to keep him alive, but tells him that it isn't right. He tells Renton that he has a dear friend who is infected by Scub, and wonders what would happen to all of those infected if their plan succeeds. Renton says that if they've merged with Scub, they might disappear. Ao angrily replies that erasing something that's wrong does not make it right. He flies ahead, grabbing the Quartz gun. Ao heads for the Okinawan pillar of light, planning to save his mother. A tearful Fleur begs him not to go, but Ao and the Nirvash Neo disappear into the pillar with Renton in hot pursuit. Using the Quartz, Ao travels back in time to when Eureka disappeared with the quartz. He is reunited with his mother and they embrace, Renton arrives as well. Ao tells Eureka to go with Renton, and that he will send them home. Eureka protests at first but ultimately joins Renton in the Nirvash after Ao tells him he wants to repay them for sacrificing so much to protect him. Before departing, Renton gives Ao his old ref board and says he doesn't care about the hardships he had to endure to protect his son. Ao absorbs all the quartz with the quartz gun and fires it at a massive amount of Secrets entering the sky, destroying them and in the process erasing Secrets from all timelines. As Renton and Eureka are returning to their future version of Earth through the light pillar, Ao sees a different Earth, one in balance with Coral and the moon with Eureka's and Renton's name carved into it, much to the boy's embarrassment and amazement. After this, Renton never sees his son ever again.
Eureka is the partner and soul mate of Renton. She has been with Renton ever since Nirvash had crashed at Axel Thurston's garage. Renton fell in love with Eureka at first sight because he thought she was the most beautiful girl he has ever seen, although Eureka didn't respond back to his feelings until season 2. Within a day after meeting her, he was willing to risk his life for her as he delivered the Amita Drive to her. Renton was assigned to co-pilot the Nirvash with Eureka. Understanding how his presence affects Eureka and the Nirvash, Renton vows to protect her, despite the rift between them during much of season 2. It isn't until Renton's abandonment of the Gekkostate that allows Eureka to recognize her feelings towards them at the end of season 2. In season 3, Renton and Eureka officially enter in a relationship, and throughout seasons 3 and 4, they are seen holding hands, embracing, and by each other's side. Holland once said, "Eureka's partner is you Renton" according to Episode 34. The relationship goes deeper when the Nirvash needs both Eureka and Renton to maximize its capability with a balance. Their relationship is the most complex due to the strong emotional bond and trust between them. As the series progresses, Renton's love for Eureka grows stronger to the point he is willing to risk his own life to protect her. Eureka never formally marries Renton, but the record book Axel wrote that Eureka was Renton's wife, and the kiss in Episode 50 with the lake scene allows viewers to presume Eureka and Renton are eventually formally married. In Eureka Seven: AO, they finally married and had two biological children: an unnamed daughter, who died 3 months after birth, and later a son named Ao.
Maurice, Maeter, Linck
Maurice, Maeter, and Linck are Eureka adopted kids. Though the first two seasons, the relationship between Renton and the kids was hostile due their belief that he was trying to take Eureka, whom they think of as their mother, away from them. They often pull pranks on him and seemed to dislike him, and even though he initially disliked them back, he never treated them badly. In seasons 3 and 4, their relationship deepens as Renton serves as a father figure to them, although they still hesitated to refer to him as their father. In season 4, they are finally able to accept him as part of their family when Renton tells them how much he loves them and wants to be their father. In episode 50, Maurice was able to implicitly call Renton "papa". Maeter and Linck have not clearly stated their feelings toward Renton, but several scenes allows viewer to presume that they too feel as though Renton is their "papa". In the final episode, they are adopted by Renton and have taken his last name.
Ao is the son of Renton and Eureka. Ao had always hated Renton when he was a kid because he thought he was a deadbeat father who abandoned him and Eureka. After hearing the truth from Eureka's past self and his guardian, telling him that Renton was fighting for them, his hatred towards him lightened, but he still wanted to punch him when they first met. After hearing that Renton always loved his family and wanted to destroy the Scub Coral in order to prevent his son from suffering the same fate as his daughter had, Ao was touched and happy to know his father loves him and decided to save Eureka by having her reunite with Renton because of the sacrifice his father made to keep him alive and now kind of loves him. Before parting ways, Renton gave Ao his old ref board and tells Ao that the sacrifices he made to protect Ao were worth it.
Sometime prior to Ao's birth, Renton and Eureka had a daughter, who's name is unknown. Renton loved his daughter more than anything, but her death at three months of age had a profound effect on him. The circumstances surrounding her death presumably causes him to blame himself for her death and he still mourns the loss of his precious baby daughter. It is her death that leads Renton to deciding to destroy the Scub Coral and separate himself from Eureka by sending her to another world and time in order for their second child, Ao, to survive.
Renton is the son of Adroc Thurston, who was a military scientist who specialized in studying the Scub Coral and later was presumed to have died as he stopped the First Summer of Love from destroying the planet. After his father's "death", he was raised by his older sister, Diane, and grandfather, Axel. Soon after, his sister disappeared, and he was left in the care of his grandfather, who was protective of him and initially refused to let Renton join the Gekkostate out of fear of losing his grandson, who was his only remaining relative. In season 4, Renton discovers that his father and sister are, in fact alive; they had merged with the Scub Command Cluster and he was able to meet them once more.
Renton's relationship with the Gekkostate started off as intense but later became that of a family. In seasons 1 and 2, Renton was the "busboy of the Gekko" and was forced to do maid-like chores. He was often dismissed or ignored by his crew mates, teased by the children, and abused physically and emotionally by Holland, who refused to acknowledge him as Eureka's partner. This mistreatment caused him to believe that he was hated by everyone, including Eureka. Renton was able to pilot the Nirvash typeZERO with Eureka, but when Eureka was hospitalized, Renton was forbidden to be on the Nirvash. This vanishes after it is discovered that the Nirvash needs both Eureka and Renton to maximize its full power. Due to the ill treatment he received, he eventually left the Gekko, but upon his return, the members of Gekkostate exhibited greater respect for Renton and are more open towards him as both individuals and fellow shipmates, especially after discovering he is truly Eureka's partner. Furthermore, Renton gained their trust as his skills as an LFO pilot improve and he matures more. Eventually, his relationship with the members of Gekkostate evolves into a familial one, which is affirmed by Ken-Goh by referring to Renton as "their son" in the last episode. Talho also takes on more of a maternal role with Renton, and to a certain extent, Eureka after his return to the Gekkostate. Holland also seems to adopt a somewhat similar role with him as a secondary surrogate father figure following Charles Beams' death and realizing he was unjustified to treat Renton badly. Renton also emphatically insists on calling Moon Doggie "Brother Doggie", establishing him as his older brother. Holland's final words toward Renton were "It's just like him to graduate without consent".
Charles and Ray
When Renton left the Gekkostate, he met Charles and Ray Beams in a town. The two of them brought him to their ship and allowed him to stay. Through the while he was with them, they treated Renton as their son and Renton was happy. Charles taught Renton about the winds and to feel them. Then Renton discovered what they really were, and left them. When Renton returned to the Gekkostate to warn the crew about the couple, Charles and Ray were killed by Holland, and with that Renton changed a bit more and realized what Charles taught him was the thing for him to save Eureka.
Renton first met Dominic in season 1, when the two reluctantly allied together to get medicine for Eureka and Anemone. Despite technically being enemies, they parted ways on good terms, and don't personally met again, although, they encountered each other again as Renton helped Anemone understand her feelings for Dominic, who came to save her. In the manga, they have a stronger partnership, where Dominic sacrifices himself to help Renton get to Eureka and stop the Coralian Zone from destroying the planet.
- (To self) It all sucks. This town sucks, my life sucks, but as long as I got waves, everything's okay. As long as I can lift, it's no problem. So you see, I'm okay, sis! I've got my lifting and as long as I can keep lifting, no matter where I am, everything's great...
- (To self) But you know what Holland says about that? 'Where you were born, doesn't matter much. The spot a person really needs is always right in front of their eyes'. I'm gonna get big, right here on this spot. You see I'm gonna earn myself a really big name and then I'll pull off a cut-back-drop-turn on an LFO just like Holland.
- (To self) This totally sucks. That's right. This city completely sucks. It's a hopeless city that's like the definition of sucks. Even if I wanna lift, you don't get any decent waves here. If you want any kind of life, you gotta join the military. But then, I don't know how it is I'm gonna be able to get out of this city. I'm too young to know that. I mean, I've only been alive for 14 years. So all I can do is stay here in the city that totally sucks.
- (To self) This just...this just...this city just...SUUUUUUUUUUUUUUUCKS!
- (About Eureka) She's so cute!
- (To self) I'm so smart!
- (About Eureka) Amazing! She's so nice!
- (To Eureka) It's alright! I may not look it, but I'm a professional mechanic.
- (To Eureka) See, when you become a mechanic of my caliber, you can sense that machines have feelings, too.
- (To self) Sis, this is amazing. She's the ideal girl that doesn't think that the things I say are strange! Sure, she's a little weird, but she's so worried about having trashed my room that she wants to use a flamethrower to burn...burn...burn!?
- (To self) I know what you're thinking, sis. But it's not like I'm trying to pull off this crazy stunt just because Grandpa told me to. It's just...it's just, I had to tell that girl what I wasn't able to say to her before. The things you told me way back then and the things I have come to believe in now. So, let's go, Renton! Come on, let's go! I'm taking off after that girl.
- (To Eureka) You see, I did it because of you and I can't do it without you! I guess that I'm totally in love with you!
- (To self) But, at that moment, all I wanted to do is rescue her. And then, it was like, Nirvash told me to trust it, to trust that feeling. That's why I finally decided to believe in it. But believing it, I thought that just maybe I would be able to rescue her. Because I thought that it would be the proof of what I believe in.
- (To Axel) So, I'm gonna stop running away now. I'm gonna stop. I'm not gonna run anymore. I'm gonna get some training. I wanna train so that, someday, I can become a mechanic, just like you, Grandpa.
- (To self) I guess, maybe I should have taken some time and given this whole situation a lot more thought. And I really should have tried to imagine exactly what kind of life I was getting myself into and what kind of experiences were waiting ahead for me. But sis...I was just so happy about finally finding something I could really live for, and I was so engrossed by the clear eyes of the girl who's next to me. I used to feel like it was wrong, to even be thinking about this sort of thing.
- (To self) Whoever said that first love is both sweet and sour is dead wrong; it's only bitter.
- (To self) Right. I won't let go even if I die! And I don't want to let go either.
- (To self) I am me!
- (To self) No, it's okay. It's better if you don't know right now. Just stay who you are.
- (To Eureka) You like me, Eureka?
- (To Eureka) I love you, Eureka.
- (To Holland) Never beg...you earn, by winning, or else you won't get anything...that's right, isn't it, Holland?
- (To self) I can fly.
- (To Ao) If it's for you, I don't care how much hardships I had to endure...son.
- From the first episode, Renton made it clear that he hated his father, Adroc, because he believed Adroc abandoned the family for his research, and felt no sympathy for the man despite him being "dead". However, when Eureka told Renton that Adroc released the Amita drive to protect his family, Renton was able to forgive his father and even expressed his feelings with no malice to him when they finally met in the Scub Command Center.
- Although he is initially presented as an immature teenager, Renton is revealed to actually be a genius; seen with his skills in mechanical engineering, his ability to pilot Nirvash, and when he invents the first IFO by combining his knowledge of the Scub Coral and LFOs.
- Renton joined the Gekkostate for three reasons: to lift as much as possible, to be near Holland, and to be together with Eureka. However, his reasons become that to protect Eureka and the world from catastrophe.
- In Eureka Seven: AO, the front set of his brown hair is white; why this happened is never explained.
- His son, Ao, inherited all of Renton's facial features while having Eureka's eye and skin color. Ao's hair was originally brown like Renton's, but it turned turquoise when he first came into contact with the Nirvash. He is also as blunt as Renton is, according to Eureka.
- Although he doesn't want to be involved with violence and use guns, Renton is willing to fight in order to protect his loved ones, and has used a gun about three times in Eureka Seven and carries a sawed-off shotgun with him in Eureka Seven: AO.
- It is revealed in episode 50 (according to the family record book) that Renton married Eureka and adopted the children on April 2, 12006, when he was 16-years-old. Renton and Eureka's two biological children would be born a few years later, in Eureka Seven: AO. In total, they have five children (two biological and three adopted).
- Episode 50 also revealed that his date of birth is February 28, 11090.
- How Renton resented his father, Adroc, for supposedly abandoning the family for his research is similar to how his own son, Ao, resents him due to Ao's initial belief that Renton abandoned him and Eureka. However, Renton later discovered that his father sacrificed himself to save his family and the planet from the First Summer of Love. Also, Ao discovered that Renton always loved him and Eureka, and sacrificed his own happiness and was trying to destroy the Scub Coral in order to save his son due to the guilt he feels for failing to save his late daughter.
- According to the DVD commentary of Episode 1 done by Kaori Nazuka and Yuko Sanpei (Eureka's and Renton's respective seiyus), it was decided in the studio while recording episode 1 by the cast members that all males in the Thurston snort when they become angry (As Axel did when Renton claimed he would put him in a retirement home in Episode 1). It can be assumed that this applies to Renton and Adrock as well.
- In the first novel, Blue Monday, it is noted that Renton is the third shortest boy in his school and he had dated one classmate, but never had a romantic interest in girls until he met Eureka.
- In Eureka Seven: AO, Eureka told Ao that his Quartz Gun is the weapon Renton has been searching for a long time in order to save them, but how he has knowledge of the gun, which originates from Ao's world, is unknown. It is possible that when Eureka first arrived in the year 2025 and met Ao, she witnessed him battle Truth with the gun and told Renton about it, which inspired him to make the Nirvash Mark I built for it.