Hiro is the son of Kaito Nakamura and Ishi Nakamura, the younger brother of Kimiko Nakamura and adoptive father of Nathan Bennet.
At the start of the series, Hiro's power is developed enough for him to turn the second-hand of his clock back one second. It is later discovered that this same power made a train fourteen seconds late. Ecstatic at these accomplishments, Hiro confides in his friend, Ando, who is extremely skeptical of Hiro's new abilities. At Ando's suggestion, Hiro teleports himself into the women's bathroom of a local club, though Ando is not looking at the time. Seeing Hiro dragged out of the bathroom, Ando states that this only proves that he is a pervert, and a crestfallen Hiro walks away as Ando yells sarcastically that he is a "Super Hiro!" As Hiro returns home on the train, he sees a vacation ad for New York City. At this point, Hiro's power inadvertently activates, teleporting him to Times Square.
Hiro appears extremely happy to have successfully used his ability. He soon discovers a comic book called 9th Wonders! in a nearby newsstand that shows himself standing in Times Square with his hands up and yelling, "Yatta!" (meaning "I did it!"), an incredibly accurate depiction of Hiro's arrival in New York. He attempts to pay in Japanese yen, and runs off with the comic book. Hiro then discovers that the story includes what has already happened between himself and Ando, and his discovery of his abilities. Hiro decides to find the artist and writer, Isaac Mendez, by visiting his loft.
Hiro visits Isaac's loft, discovering the artist's dead body, partially decapitated with the brain removed. Hiro is arrested by the police and during the interrogation discovers he has traveled not only through space, but through time as well. It was October 2 when he left Tokyo, and he arrived in New York November 8. Just as Hiro discovers this, he witnesses a cataclysmic explosion. Before the blast reaches him, Hiro returns to the train he was on at the moment he left Tokyo, still holding the comic he picked up in the future.
After going to the future, Hiro decides that he must save the world by preventing the explosion. Hiro then persuades Ando that his powers are genuine by saving a young girl from an oncoming car (as predicted by the comic book from the future).
They take a plane to Los Angeles, but go the rest of the way by car, because that is what the comic book says they do. Hiro and Ando then have several misadventures in Las Vegas, starting when Ando decides to hit the casinos. Ando convinces Hiro to use his powers to cheat, stopping time to give Ando winning hands in poker games. The two make a lot of money, but are later thrown out of the casino and then beaten up by a player they had cheated.
After an argument, Hiro and Ando go their own separate ways. Hiro ends up in a diner near Las Vegas where he sees Nathan Petrelli land after escaping from Noah Bennet andthe Haitian. After Nathan enters the diner, Hiro briefly talks with the man, and Nathan decides to give Hiro a ride back to the casino, where he and Ando are reunited.
Their attempts to call Isaac Mendez are finally successful, as Peter Petrelli answers the phone, relaying a message from Hiro's future self, and tells them "Save the cheerleader, save the world" and to come to New York City. However, the pair are detained further when the same player they cheated earlier forces them to play a poker game to make money to repay what they gained before. Ando and Hiro manage to escape shortly before the other players are slaughtered by Jessica Sanders. Hiro is crestfallen that he is unable to prevent their deaths but is comforted by Ando, who claims Hiro is still beginning his journey to become a true hero.
Hiro exercises his power as a hero again when he and Ando run across D.L. Hawkins and his son, Micah, at the scene of a burning car wreck with a passenger trapped inside. As D.L. frees the passenger, the vehicle explodes and Hiro freezes time to save them. Hiro complains about not having super strength when he is forced to drag the pair away from the explosion. After he unfreezes time, he shows the future edition of 9th Wonders! to Micah and speaks to him in English about his space-time manipulation powers.
Continuing their journey to New York, Hiro and Ando stop at a diner in Texas and meet a waitress named Charlie, who recently developed powers of her own. As Hiro talks to Charlie, who finds him to be "sweet," Sylar watches them talk. Charlie is later found murdered in the diner's storeroom with her brain removed, just as Hiro had found Isaac's body in New York. Not wanting to fail to save someone like he did in Las Vegas, Hiro goes back in time in an attempt to prevent her murder, promising Ando that he'll return in five seconds.
Hiro's attempt to teleport to the day before Charlie's death goes awry, landing him six months in the past, on the day of Charlie's birthday. Though he considers another time-travel attempt, the possibility of being eaten by a dinosaur dissuades him. Hiro tries to warn Charlie and protect her from the "very bad man", but ends up forming a close relationship with her after his attempts to convince her fail. Eventually, he asks her to come with him to Japan. As the date of their departure gets closer, Charlie reveals that she has a blood clot in her brain and will die no matter what. She says she was going to give up before Hiro came and that she has fallen in love with him. Just as they are about to kiss, Hiro inadvertently teleports to Japan some time after he and Ando had left for the United States. Unable to return via his own powers, he is forced to make his way back to the diner through normal means. Ando, happy to see Hiro again, assumes Hiro used his powers (not least because Hiro now appears in a photograph on the Diner's wall taken with Charlie six months previously) and was successful, but Hiro explains that he failed and made his way back through public transportation. After this incident, Hiro's powers appear to weaken.
The novel Heroes: Saving Charlie expands and changes the events of the history. Hiro's love story with Charlie is expanded, as is her own role in foretelling her demise. They dated and fell in love during the months Hiro teleported back to, and eventually he told her that her memory was a power like his own. He did convince her to go to Japan with him, and they ended up in the same bar where Hiro has first told Ando his mission was to save the cheerleader, and save the world. Charlie realized Hiro lied to her (he had told her his mission was to save her life) and went back to the U.S. because she believed saving the world was a more important destiny for Hiro than saving just her.
In "Fallout", Hiro and Ando find their way to Claire's high school, but arrive after Sylar's attack and believe her to have already been killed. Ando tries to be optimistic about the situation, claiming that "save the cheerleader, save the world," is just a progression of events — save the cheerleader and then save the world — and not a conditional statement. Hiro doesn't accept the claim, believing that he would have meant it as a conditional statement. While thinking about their next move, Hiro is called by Isaac Mendez, who arranges a meeting with them in Texas. Once they meet, Hiro shows Isaac the future 9th Wonders! comic, much to the artist's surprise, then asks him to paint the future. At first, Isaac isn't convinced he can do so without drugs, but once he realizes that some of his rough sketches depict Hiro traveling back to save Charlie, he tries again. Hiro recommends that Isaac concentrate, using the same face he makes when activating his own powers, and Isaac manages to activate his power successfully. Isaac's painting depicts Hiro brandishing a sword while encountering a carnivorous theropod dinosaur, seemingly confirming Hiro's earlier fears. Hiro remarks, "I really need to find that sword."
Two weeks later, at the beginning of "Godsend", Hiro and Ando go to the Museum of Natural History, looking for the sword that Hiro saw in Isaac's painting. They find it in a glass case on the back of an ancient warrior, Takezo Kensei. On the hilt of the sword is the symbol that appears in various points throughout the series. Hiro recalls a story his father told him of Kensei and how the sword was believed to have benefited him. He decides to steal the sword, believing it will help him control his powers. While doing so, he brandishes it against a model dinosaur in the museum, mimicking the picture Isaac had drawn earlier. However, the museum's version of the sword is only a wooden replica made by theLinderman Group. He returns to Isaac's loft, where he meets Simone Deveaux. Hiro also happily re-encounters Nathan (whom he addresses as "flying man"). After introductions and brief discussions, Simone recommends Hiro go back to Las Vegas with the dinosaur painting and see Mr. Linderman, an avid collector of Isaac's paintings.
In "The Fix", Hiro and Ando are chased by unknown men. Eventually, they are captured by the men, and Hiro is told that the men work for someone "truly powerful." Hiro and Ando are then told to stop their quest. Hiro declines, even after being offered first class plane tickets back to Japan. The men state their boss won't be happy and bring the two to him. Hiro then realizes the men work for his father, Kaito.
In "Distractions", Hiro's father tries to convince him to go back to Tokyo, admitting that it was a bad idea to start him off at the bottom and offering him a job as Executive Vice President of the company. After Hiro's initial refusal, his father rips up Isaac's painting. Kimiko, Hiro's sister, admits to him that, though his father is too proud to admit it, the company has gone through hard times. Ando reminds him that his powers are declining and it might not be a bad idea. Hiro eventually convinces his father that his sister is a better candidate to take over the company. Mr. Nakamura then lets Hiro continue with the mission.
In "Run!", Hiro and Ando are again sidetracked by a weeping Las Vegas showgirl named Hope. Hiro and Ando get separated while trying to retrieve a bag for Hope. Hiro is locked in a closet by Hope, then later freed by a Gaming Commission agent, who is looking for her. After watching Ando get shot during a firefight between the agent and Hope in "Unexpected", Hiro feels his mission is too dangerous to bring Ando any further. Hiro defeats Hope by unexpectedly using his powers to reverse the bullet in time one second, sending it back into the gun, disarming Hope. She and the agent are arrested, but since Hiro had his eyes closed, he doesn't realize he used his powers (which haven't been working well lately). He leaves the Versa with Ando and boards a bus alone (greeted by comic icon Stan Lee playing the bus driver).
In "Parasite", Hiro tries to enter Linderman's casino, but becomes aware that he has been red flagged and is not to enter the casino. As Nathan Petrelli enters the casino to meet with Linderman, he uses his influence to help Hiro get inside. Hiro delivers the painting to Mr. Linderman's vault, where the vault curator accepts it. While the curator is in another room, Hiro locates the sword and steals it, with the help of Ando, disguised as a security guard. Hiro teleports them both out of the building to escape the other security guards, but they find themselves on top of the Deveaux building, in a post-apocalyptic New York five years after the explosion.
In ".07%", Hiro decides to learn as much as he can about the future to know what went wrong with his attempts to stop the bomb. He and Ando enter Isaac's apartment, but find it netted with newspaper articles suspended on strings, each article relating to the explosion and even the heroes themselves. Just then, Hiro and Ando hear a sound, and Hiro takes out his sword to confront whoever it is, but is shocked when he comes face to face with his future self.
In "Five Years Gone", Hiro learns from his future self that the bomb still went off. The younger Hiro in turn reveals to his future self that the present day Claire was rescued and Sylar got caught, but Sylar himself wasn't killed yet. This gives Future Hiro hope, but before they can do anything about it, Matt Parkman and his Homeland Security team break into Isaac's loft and begin a raid. Ando and Future Hiro manage to escape, but present day Hiro is apprehended by Matt and the Haitian. Hiro is brutally interrogated by Matt, who doesn't believe he is telling the truth about time traveling. Mohinder Suresh is called in to investigate Isaac's loft, where he is convinced about Hiro's story, but fails to convince thePresident, Nathan Petrelli (who is in fact Sylar in disguise). The President orders Mohinder to kill present day Hiro, but Mohinder finds he can't bring himself to do it. In the meantime, Ando and Future Hiro enlist the aid of future Peter Petrelli and they break into the building Present Hiro is captured in. They defeat all the guards and with the aid of Mohinder, manage to rescue Hiro. Unfortunately, before Hiro and Ando manage to travel back to their time, Future Hiro is shot by Matt Parkman, who is in turn stopped by Peter, who uses telekinesis to close the door on Parkman. Hiro is shocked to see his future self die, but when Ando confides he believes in Hiro now and shows him a copy of the 9th Wonders! comic book in which Hiro stabs Sylar with his sword, Hiro gets his confidence back and travels back to the time from which they came.
In "The Hard Part", upon their return to the present time line, Hiro proudly vows to New York City that he'll do his best to save it. However, he does realize it will be the hard part of his destiny. Hiro and Ando return to Isaac's loft, hoping to fill in the gaps of the futuristic comic book. However, they arrive to find that Isaac has been killed by Sylar. When Hiro and Ando hear Sylar in the bathroom, they hide behind a painting. Sylar hears their heartbeats and uncovers their hiding spot. However, Hiro teleports Ando and himself to safety before they are found.
Hiro and Ando continue to follow Sylar and watch him meet with his mother, attempting to reconcile with her. After Sylar's mother is accidentally killed, Hiro stops time and approaches Sylar, sword drawn. However, as he swings, time resumes and Sylar grabs Hiro's sword. Sylar begins to freeze the sword, and – as Hiro teleports to safety with Ando – it breaks in two.
In "Landslide", after Ando looks in the Yellow Pages for someone who can repair the sword, he finds an ad bearing the helix symbol seen throughout the series. Upon arriving, they encounter Hiro's father Kaito, who tells Hiro that he is worthy of the family destiny. He also trains Hiro to fight and kill with a sword. When Hiro is done training, he and Kaito discover that Ando, thinking that Kaito had convinced Hiro to return to Japan, bought a nagamaki and has left to confront Sylar alone.
In "How to Stop an Exploding Man" Hiro teleports to Isaac's loft to find Ando about to be killed by Sylar, but manages to teleport them both out of danger and back to Japan. Hiro switches weapons with Ando, claiming that "'It is not the sword. It is the man.' This man is ready." Upon returning, he impales Sylar with the nagamaki. Sylar uses the last of his strength to send fling Hiro toward a building, forcing Hiro to teleport to save himself. In doing so, however, he sends himself three centuries into the past to Kyoto, Japan, circa 1671. Upon collecting himself, he finds himself caught in the middle of a battle between a small group of samurai about to attack a figure on the horizon, who appears to be Kensei himself. Before the battle begins, however, an eclipse shadows the scene.
Powers and Abilities
- Space-Time Manipulation: Hiro possessed the ability to control space and time with his mind. He was able to teleport himself to any part of the world and was also able to travel through time.
- Power Absorption: Hiro's greatest weakness was the power absoption. Tommy Clark was able to remove his powers. After losing his power this ability became useless on him.
- Don't Look Back
- One Giant Leap