Hiro Hamada/Synopsis

==Role in the film==
Hiro Hamada is a young prodigy living in the high-tech city of San Fransokyo, along with his aunt Cass and older brother Tadashi, who wants Hiro to become a productive member of society. Despite his high intelligence, Hiro spends his time in underground bot fights throughout the city, which has frequently led to Tadashi having to bail him out of tough situations. One particular night, Hiro takes part in an illegal bot right against the champion, Mr. Yama, leaving the battle victorious. Out of spite, Yama and his goons attack the boy, who's immediately rescued by Tadashi. Though they escape Yama and his thugs, the two brothers, along with everyone else involved in the illegal bot fights, are caught by the police and arrested. Hiro and Tadashi are released that same night, on account of Cass, who takes them home, scolding them along the way. The two can bypass punishment, but a frustrated Tadashi scolds Hiro on his bot-fighting obsession, wanting him to put his intelligence to better use.
Hiro scoffs the idea and attempts to join another bot fight. Tadashi offers a ride, but instead takes his brother to his college; the San Fransokyo Institute of Technology. There, Hiro meets Tadashi's friends; Honey Lemon, a hyperactive chemistry genius, GoGo Tomago, a sassy adrenaline junky, Wasabi, a neurotic neat freak, and Fred, a hopeless fanboy with a love of comics and Japanese Kaiju. Though Hiro is shy and quiet throughout the introductions, he's secretly amazed by the institute, finding the inventions breathtaking, though he doesn't admit so just yet. After meeting the team, Tadashi takes Hiro to his lab, where he introduces him to Baymax; a squishy, white robot, programmed to be a personal healthcare companion. Tadashi explains Baymax was a creation meant to help people around the world and is revealed to be programmed by a special chip. Tadashi explains the chip is what makes Baymax who he is. After the introduction, the two run into Professor Robert Callaghan, a world-renowned robotics expert, mentor of Tadashi, and Hiro's idol. With the help of the clever Tadashi, Callaghan convinces Hiro to join the institution, claiming a school is a place where the boundaries of robotics are pushed, and geniuses can put their brains to the test. Callaghan's words instantly strike Hiro, and after departing the school, he confesses his burning desire to join the institute.
According to Tadashi, the school holds a convention every year, where up and coming geniuses are meant to showcase new creations. Those who impress Callaghan, are accepted into the school. Tadashi then advises Hiro to concoct a creation to do just that, but the boy-genius instantly hits a block of thought and nearly gives up. Tadashi restores his brother's faith by assisting him in enhancing his thought process, by saying to look from a different angle, which eventually leading to Hiro's breakthrough. After a long period of work and planning, with the help of Tadashi, Hiro decided to create the microbots; miniature robots capable of forming anything that comes to mind through the use of a telepathic headband transmitter. Hiro takes his inventions and showcases them at the convention. Though nervous at first, Tadashi eases his little brother, resulting in a fantastic showcase, thoroughly impressing both Callaghan, as well as famous tech-geru, Alistair Krei. Krei offers Hiro vast wealth in exchange for ownership over the microbots. Callaghan interferes with the offer by accusing Krei of using technology and science for selfish reasons, advising Hiro to deny the offer. A frustrated Krei leaves the scene, whilst Callaghan congratulates Hiro on his success by granting him admission into the school. In celebration, Cass offers to take Hiro, Tadashi, and their friends back to the cafe for free dinner, though Tadashi and Hiro separate to have some alone time.
Once they're alone, Tadashi congratulates his younger brother on his success, proud to see him use his genius for bigger things in life. Suddenly, however, the school's fire alarm goes off, prompting Tadashi and Hiro to rush to the chaos. There, they see civilians escaping. One woman informs the boys that Callaghan is still inside the burning building, and Tadashi decides to go in after him. Hiro tries to stop him, but Tadashi goes forth, not willing to risk losing Callaghan. Hiro tries to follow behind, but before he's able to, the building violently explodes, rendering him unconscious, and killing both Tadashi and Callaghan. A funeral and memorial are held, and Hiro falls into a deep depression at the loss of his brother and best friend. Cass tries to comfort her nephew but to no real avail. As such, Hiro remains alone, within his room, ignoring both Cass's attempts to cheer him up and his saddened friends. One day, Hiro accidentally stubs his toe, and his pain summons Baymax, who was originally thought to be out of commission.
Baymax explains he heard the sound of distress and offers assistance. Hiro denies his offer, and tries to deactivate the bot, only to accidentally stumble upon one of his microbots, which is still active and trying to reunite with the other bots. Hiro believes both his microbots and the transmitter were destroyed in the fire, thus ignoring the bot's activity, believing it to be malfunctioning. Baymax, however, takes notice of this and acknowledges it, only to have Hiro sarcastically order Baymax to find out where the bot is trying to head, which the robot takes literally and does just that. Hiro chases after a wandering Baymax through the city, and the two eventually find themselves at an abandoned warehouse. The two break-ins and they soon stumble upon a machine creating millions of microbots. As Hiro ponders on the mysterious discovery, the microbots rise and attack. Hiro and Baymax evade them hastily and eventually encounter a dark, masked figure named Yokai; the man responsible for the theft of the microbots. The masked man pursues the duo, but they eventually escape at the last minute, immediately heading to the police station to report the attack.
The two give their claims to Officer Gerson, who finds their story to be rubbish, thus denying them lawful assistance. Just then, Baymax begins to lose battery, forcing Hiro to leave the station and return home to have the robot charge. After sneaking past an oblivious Aunt Cass, Baymax begins to charge and Hiro takes a breather from the exhausting day. Just then, Baymax acknowledges Tadashi's disappearance, asking for his whereabouts. Hiro reveals Tadashi's unfortunate demise, but the mention of the fire being an accident sparks an epiphany. After the encounter with Yokai, Hiro realizes the fire was no accident and recruits Baymax in helping him take down the masked culprit, wanting to avenge his brother's death. As such, Baymax is given a few upgrades, including a super-suit equipped with karate-like battle programming, and a new programming chip, which gives him such abilities. After his new upgrades are put to the test, the two head out to find and capture Yokai. They arrive at the warehouse, only to find it to be vacated. However, using the last microbot to track him, Hiro and Baymax are led to the docks, where they find the demonic Yokai emerging from the fog with a massive piece of technology. The two go into silent hiding until Honey, GoGo, Wasabi, and Fred arrived, having followed the two there, after spotting them snooping about the city, alone.
Hiro advises them to leave until the group is attacked by Yokai. Baymax tries to battle the masked villain, only to be thrown onto the top of Wasabi's van. The gang retreats from the scene, with Yokai immediately following behind them, following into a chase throughout the city streets. As they try to escape, Yokai makes several attempts to kill the team, but luckily, with GoGo's reckless driving, they manage to escape by driving off a ledge and into the ocean, having Yokai believe them to be dead, thus vanishing once again. Baymax manages to rescue the team and bring them back to shore, and to recover, the group heads to Fred's mansion home. There, they ponder on the true identity of Yokai other than Krei and how to find him, before Baymax reveals he scanned the masked man's body, allowing them to track him down via body temperatures and other health-related attributes. Before the mission to bring Yokai to justice begins, Hiro decides to upgrade both himself and the rest of the team, believing they'd have a much better chance if they all join together as megaheroes.
After some scientific modifications and training, the group of friends become the team, Big Hero 6, bent on taking down Yokai. To do so, the team believes his mask is his source of power, and the objective is to retrieve the mask to cease his control over the bots. Baymax is the last to be upgraded, and after his new super-suit is revealed, he and Hiro take a test flight for the first time throughout the city, eventually landing on one of the giant balloons towering over the city and overlooking a sunset. Hiro and Baymax take the time to relax and bond for a short moment, which brings happiness to the boy. Realizing this, Baymax asks Hiro if he's satisfied with his care, as his true objective throughout their adventure is to ensure Hiro's happiness and satisfaction, claiming Hiro to be his patient. Hiro denies Baymax's question and returns to the matter at hand. After scanning the city to find a match to Yokai's health information, Baymax discovers a match on an island not far from the city. The team heads to the area, which is revealed to be an abandoned facility. There, they find a machine in the process of restoration but are unable to uncover what it is, exactly. However, they soon find a room with recordings taking place in the facility.
After watching, they learn that the facility originally belonged to Alistar Krei, and the machine was a portal meant to enchanted transportation. The test subject, a woman named Abigail Callaghan, was the first to try it out, but as she did, the machine malfunctioned. Instead of calling off the procedure, Krei insisted they move forward, resulting in a tragic accident that left Abigail lost in the portal and supposedly killed by the machine's destruction. The incident leaves Krei's facility to be shut down and blocked off, and the team then comes to the conclusion that Krei is responsible for stealing the microbots in hopes of rebuilding his portals. Just then, Yokai returns and attacks once more. A battle follows, and in the process, Hiro attacks Yokai, causing the two to topple down a flight of stairs, which knocks off the villain's kabuki mask. Yokai's true identity is then revealed to be Professor Callaghan. Callaghan confesses his crime of stealing the microbots and reveals he used them to escape the fire, alive and unharmed. A heartbroken Hiro reveals that Tadashi died trying to save him, but Callaghan coldly says that it was Tadashi's own mistake. Furious that his brother died for nothing, Hiro orders Baymax to kill Callaghan. Baymax denies such an action, explaining he's unable to bring harm to a human being, but a blinded Hiro removes the robot's healthcare card, leaving only his programming to battle and destroying, sending him on a violent, mindless rampage in an attempt to kill the professor. Seeing this, GoGo, Fred, and Wasabi try to fend off the bot, as Callaghan manages to escape.
Eventually, Honey recovers Baymax's health care card and restores the robot to his original, peaceful settings. Realizing what he's done, Baymax apologizes to the team for causing harm, but Hiro berates them, blaming them for Callaghan's escape. The team retorts by explaining the plan was never to kill Callaghan, but instead bring him to justice. Leaving the team on the island out of anger, Hiro and Baymax return home to recover Baymax's suit. Baymax talks to Hiro about the situation of killing Callaghan, asking if his death would appease the boy and if Tadashi would have wanted this. With his mind clouded by thoughts of fury, revenge, sadness, and the loss of Tadashi, Hiro breaks down in tears. Baymax comforts the boy by showing him videos of Tadashi, which he recorded during his creation process. Tadashi's presence and loving words bring enlightenment to Hiro, who thanks Baymax for his comfort. Honey, GoGo, Fred, and Wasabi soon arrive, as well. Instead of being upset with Hiro, they comfort him, as well, understanding his actions and promising to bring Callaghan to justice, the right way. Before they set out, the team shows Hiro a recording they found, which reveals Abigail was the daughter of Callaghan, and the entire goal behind his villainy is to exact revenge on Alistar Krei.
The next day, Alister Krei is in the middle of an important showcase, just when Yokai arrives and captures him. Yokai reveals himself to be Callaghan, and the villainous professor reveals his plot to use the newly recreated portal to destroy both Krei's new building, as well as Krei himself. Alistar tries to talk sense into the villain, explaining the incident with Abigail was an accident, but Callaghan ignores him and proceeds with his plot. Just then, Hiro and the team arrives. Callaghan commands them to stand down, but Hiro tries to sympathize with the professor, explaining exacting revenge isn't the way to handle his daughter's death, but Callaghan's fury gets the better of him, and he proceeds to his plans to kill Krei and destroy everything he loves. Hiro and the others battle the villain, but Callaghan soon gets the upper hand and leaves the team members to die as his plans are set in motion. Hiro uses words of wisdom from Tadashi to successfully guide the team to safety. Hiro then concocts a new plan, instructing the team members to destroy the microbots whilst he and Baymax take on Callaghan. The plan is set in motion, and Callaghan eventually loses control over the microbots, whilst the portal, itself, is soon destroyed. With his plans foiled and power stripped, the team apprehends Callaghan, but Baymax senses life within the portal, though the being is in hypersleep.
Baymax and Hiro realize it's Abigail, and the two journey inside to save her. The two soon find Abigail, asleep in her capsule, and as they make their escape, some of the debris from the destruction strikes them, causing Baymax to lose most of his armor. The two recovers quickly and proceeds with their escape, only to find that the portal is soon closing. Baymax decides to use his rocket-fist to send both Hiro and Abigail to safety, but Hiro realizes this would result in the robot's sacrificial death, and denies such a plan, unable to lose him. Baymax disregards his safety in the share of Hiro's, reassuring his friend that he'll always be with him. Reluctantly, Hiro bids Baymax farewell, telling the robot he's satisfied with his care. With these words, Baymax sends Hiro and Abigail off, leaving himself trapped in the portal and eventually destroyed. Hiro reunites with the others and reveals Baymax's demise, and soon afterwards, the police and paramedics arrive to care for Abigail and arrest the traitorous Callaghan.
Following these events, Hiro has made a tremendous recovery from his depression, and is shown to spend his days spending time with Honey, GoGo, Wasabi, and Fred, and finally joining San Fransokyo Tech as an official student. Within Tadashi's lab, Hiro finds Baymax's last piece of armor; his rocket fist. Within the grasp of the fist, Hiro finds Baymax's original programming chip, and after some work, he's able to restore the robot, reviving him from his demise and reuniting at long last. The two rejoice in their reunion, and Hiro reforms the Big Hero 6 team, bent on protecting the city from any problems, finally putting his incredible potential to great use, just as Tadashi has always wanted.
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==TV series==
Beginning immediately after Callaghan's defeat, Hiro sets out to overcome the loss of Baymax by committing himself to college as a student at San Fransokyo Tech. On his first day, he meets the new dean, Professor Granville, and settles himself into Tadashi's former lab against her wishes. There, Hiro discovers Baymax's healthcare chip and works tirelessly to recreate the robot, beginning with his skeleton. An impatient Hiro ignores the crucial diagnostic exams, and as a result, Baymax's skeleton runs loose, ending up in the hands of Yama's gang. Yama strikes a deal, ordering Hiro to steal a paperweight from Granville's office in exchange for Baymax's skeleton. With help from Fred, Hiro does so, though Yama betrays him and tries to kill the duo. Honey Lemon, Wasabi and Go Go rescue their friends and manage to retrieve both Baymax's skeleton and Granville's paperweight in the process.
Afterward, Baymax is completed and reunites with Hiro and the team. Unfortunately, Yama mass-produced Baymax's skeleton while it was in his possession, creating an army of minions bent on stealing Granville's paperweight. Guilty, Hiro assembles the Big Hero 6 team, who manage to defeat Yama and destroy the paperweight, which turned out to be an extremely powerful weapon. Following these events, Hiro talks with Granville, admitting that while Tadashi will continue to be an inspiration, he must find his path and handle life his way, regardless of how unconventional these methods may be. Among these methods is later revealed to be his double life as a superhero protecting the city as part of Big Hero 6.
===Season 1===
During his time protecting the city & being the new top student at SFIT, Hiro forms a strong friendship with another child prodigy there, a bio-tech expert named Karmi, who while at first starting a (albeit one-sided) rivalry with him, they slowly form a tight friendship with each other, which is also supported by the fact the Karmi developed a crush on his superhero alter-ego that she calls "Captain Cutie" (because thought of his own superhero name), much to his displeasure.
Hiro and his team also contend with various other villains who've begun to show up due to Callaghan's actions & Krei still showing no concerns with building new but dangerous products without concern (making Hiro and his friends understand why Callaghan wanted to get revenge on him in the first place). Along with contending with Yama's criminal activities, Hiro and the others also deal with a bunch of supervillains such as a normal criminal that was turned into a goo monster named Globby, a sushi chef & part-time ninja named Momakase, a steampunk-themed villain & the archenemy of Fred's dad during his days as the superhero Boss Awesome named Baron Von Steamer, & a former robotic fast-food restaurant mascot turned evil robot named Noodle Burger Boy.
Little did Hiro know was that during his heroic escapades, some of the criminals he & his team fought were under employment of a shadowy crime-lord under the alias Obake, who after witnessing his heroic deeds, develops a unique interest in him and wants him by his side in his plans. He first encounters Obake when he breaks into a lab once belonging to a legendary artist/scientist named Lenore Shimamoto and steals her old journal, & when he and his team surround him, Obake traps them in boxes designed to hold them; with his being a replica of his room that filling up with water, fortunately, he finds a hole in the box that sucks back up the water. But when he & his team escapes their respective traps, they find that Obake escaped with the journal with a note to them that says "Until next time", prompting Hiro to try & figure out what he is planning about.
Sometime later , Hiro is forced to confront his old Bot-fighting days when various robots begin robbing banks & their owners are to blame, thinking Yama is behind the thefts, Hiro sneaks into the ring where he meets a young bot-fighter named Trina, whom he develops a crush on. However, the team learns that Yama has an alibi and Hiro realizes that Trina is behind the thefts (as all robots that broke into the banks were affected by Trina's bot who fought in the first round), and while they were successful in stopping her, they don't know is that not only is Trina working for Obake, but she is really a robot designed to get close to Hiro.
Eventually, Hiro is nearing his end of his 1st semester at SFIT, and when tasked by Granville for one final assignment is inspired by a recent fight with Globby to build an energy amplifier in secret despite Granville's objections, unknown to him, this a plan enacted by Obake so he could steal it for himself, it was during this time is that he discovers that Obake's real name is "Robert Aken", a former SFIT student who also tried to make an energy amplifier like he did, but was unsuccessful and got him taken to the hospital, which Granville blames herself for. 
After returning home, Hiro discovers, to his shock, that while he was busy building his energy amplifier, he sent Baymax alone to help the team but during the fight, Baymax got hijiacked with a chip designed by Obake specifically designed for robots to carry out his plans. Baymax then kidnaps Hiro and flies him directly to Obake's lair, where he discovers that Trina's a robot before being brought before the purple-glowing madman himself; he got that as part of the accident when he was a kid. 
He reveals to Hiro he is a big fan of Lenore Shimamoto and that all of his schemes were all in an attempt to do his master plan: Recreate the infamous event called "The great catastrophe" (which Lenore created by accident), destroy San Fransokyo & rebuilt it in his image to cement his name as one of the greatest scientists in history. He also reveals that he wants Hiro as his apprentice, and thinking he'll come over to his side, he locks him up while he prepare to annihilate the city. 
Fortunately for him Globby, with a change of heart, helps free Hiro & reunites with the other & Mini-Max (a miniature version of Baymax he built). Together they work to stop the newly-exploding star Obake made, & with his energy amplifier & a giant robot, Hiro (with Fred's assistance) he stops the star from exploding: devastating Obake so much that he frees Baymax from his control to save Hiro & Fred while resigns himself to the collapsing lair. 
Afterward, Hiro, seeing the danger his amplifier could do in the wrong-hands, gives it to Granville, he decides to pass him due to his Heroic deeds, but despite defeating Obake, he still remains unsure if he's alive or not. 
===Season 2===
====City of Monsters====
Sometime after stopping Obake, Hiro decides to start a new chapter in his life when he learns that Karmi begins an internship at her idol, Liv Amara's company Sycorax, prompting him (out of jealousy) to intern at Krei Tech: Though Krei only gave him the job because he was in a one-sided rivalry with Liv and barely gives him anything important to do while working their.
Hiro also contends with the aftermath of Obake's supposed demise, where he now fights against Trina, who survived the lair's destruction, & now works with Noodle Burger Boy to avenge Obake's death. He also meets a new girl named Megan Cruz who an aspiring journalist, but is also forced up against her overprotective dad Diego, who holds a complete dislike for superheroes & is made the chief of the city's police force.
During this, Hiro and his team work to fight mysterious monster transformations all around, and after some investigating, he discovers that not only Liv (with help from her assistant Chris) is behind the transformation, but is also just a clone of the real Liv who calls herself Di, who was doing all these crimes in an attempt to cure her creator, though see was successful, Hiro is able to get Diane & Chris arrested by the cops, but Karmi (who was turned into a monster during the scuffle) was forced to move out with her family, though he still manages to maintain a good relationship with her.
====Fugitives====
After stopping the monster attacks, Hiro and his team soon find themselves on the run when Globby get mind-controlled by an evil clone of himself, and although they manage to save him from his mind-control, Chief Cruz uses this as a way of framing him and manages to put all on his criminal list. While Hiro and most of his team decide to lay low until it blows over, Fred on the other hand refuses and decides to go out on night patrol, where his recklessness gets him chased into the woods, where he also learns from Cruz that the reason he hates superheroes is because his father died protecting him from a supervillain and Boss Awesome showed up to late, and although he tried justifying any heroes actions, Cruz refuses to listen.
Eventually, Hiro and the rest of the team (sans Fred), prepare to graduate SFIT: Hiro being given Tadashi's degree & scheduled to say a speech. But is faced with a new problem when Chief Cruz introduces them to the Buddy Guardians, robots designed by Krei Tech for him to use to enforce the law, and when he confronts Krei about this, he says nothing to him other than it was part of it's secret division. With the help from Megan, Hiro discovers that each of the guardians have copies of Obake's chip inside them.
Thinking Obake is resurfacing, Hiro and his team go of to stop him, but most of the other get captured by an illegal (& quite ironic and hypocritical) trap by Cruz to unmask them. Arriving at the warehouse, Hiro & Baymax get ready to confront Obake, but instead are confronted by Trina, now sporting her "dad's" look. She reveals that she was using her position as chief engineer (which Krei stupidly gave her with just one meeting) and plans to finish what Obake started and obliterate San Fransokyo, except this time she'll replace humanity with robots. 
She launches her attack and proceeds to kidnap Megan. With Globby's help, the Big Hero 6 rescue her, and Cruz finally accepts them as heroes and learns their identities. Roddy builds a giant robot named Mega-Max, which he and Mini-Max pilot, to defeat the Guardians, while Hiro has several Megabots change the Guardians' AI chips to healthcare, and successfully captures Trina's, who tells her that she's been so focused keeping Obake's legacy alive, it inspired him to keep his brother's legacy alive.
On the day of Hiro's graduation, where he talks about his new understanding to the word legacy, where he promises to continue doing Tadashi's legacy in helping the world.
===Season 3===
After graduating from SFIT, Hiro, Baymax, & Fred begin to suffer fear of Big Hero 6 being disbanded when the other 3 begin to apply to jobs and believe they'll move out. They also contend with Noodle Burger Boy, who's also feeling alone after losing both Trina and Obake, he decides to "make" a new family in the form of other robotic mascots: said mascot's being Hangry Panda, Crushroom, & Hyper-Potamus. Despite initially failing to stop Noodle Burger Boy, Hiro is fortunately able to be comforted that his friends won't ever truly abandon them.
After sometime, Hiro and the others discover that the Mascots are intending to add a new member to their "Family", which they send send Mini-Max as a secret agent to beat them for good. However, Mini-Max begins to feel guilty about betraying the robots. When the time comes, the robots reveal that they made a deal with Momakase and knew that Mini-Max would betray them. However, Hiro reveals that he made a deal with Momakase who turns on the robots and aids the heroes in stopping and removing the evil Obake chips from them, turning them all of.
However, feeling sad for the robots, and taking what he learned from Fred's father, Hiro reprograms the mascots as nice customer servers to help around at Cass' cafe, which she happily accepts, and during a group-hug with their friends & family, Hiro and Baymax do their signature fist bump. 
==Video game==
===Disney Infinity===
Hiro and Baymax appear as playable characters in the second Disney INFINITY game, donning their superhero outfits.
Hiro's main source of power and attacks in the game are his Microbots, which, like in the film, can be used in combat, creating impressive damage to enemies.
Aside from that, Hiro also can ride atop Baymax, being one of the few characters in the game with the ability to ride on another playable character (the other being Rocket Raccoon from Guardians of the Galaxy).
Hiro can additionally use booster jumps for super-stealth spying purposes.
===Big Hero 6: Battle in the Bay===
Taking place after the events of the film, San Fransokyo falls under the attack of a battle bot invasion, at the hands of Yama, who seeks vengeance on Hiro for humiliating him and "usurping" his bot-fighting championship. With this, Hiro and the team band together to defeat the villain.
===Kingdom Hearts 3===
Hiro appears in the third installment of the series. He meets Sora, Donald Duck, and Goofy during a battle against the Heartless on the San Fransokyo Bridge. They later decide to join forces in order to save their world from the invasion after formally introducing Sora, Donald, and Goofy to the rest of the Big Hero 6 team following Hiro discovering a news article online that proves discouraging to the team upon reading it.
However, Hiro soon discovers that the Baymax he left behind in Alistair Krei's portal when they rescued Abigail Callaghan has been corrupted by the Heartless along with the Microbots he was stranded with and is personally leading the Heartless assault on San Fransokyo. Working together with Sora and his friends, Hiro and Big Hero 6 are able to purge the darkness from the old Baymax and return him to normal. With two Baymax at his side, Hiro continues to defend San Fransokyo with the rest of Big Hero 6.
==In Marvel Comics==
The Character who become the basis for Hiro Hamada from Marvel Comics is Hiro Takachiho, whom just like in Disney film, possesses exceptional brilliance that made him easily passes in schools in early young age unlike regular students would. Here, Hiro was the one who create Baymax for his institute, Tesuka Institute's science fair much like Tadashi in 2014 film.
At age 13, Hiro was targeted by the Giri, a top-secret consortium of Japanese politicians and business entities that was established to recruit and train potential operatives for a Japanese super-team, Big Hero 6. Silver Samurai whom sent by the Giri goes for him and his mother for recruit him for that purpose, but neither of them interested with that idea. However, after his mother was abducted by the Everwraith, the astral embodiment of all those killed in the 1945 nuclear attacks on Hiroshima and Nagasaki, Hiro was forced to turn to Big Hero 6 for assistance. After joining forces with the team, which also included his idol, the Japanese hero Sunfire, Hiro opted to join the team and has remained a member ever since. When Silver Samurai and Sunfire left the Big Hero 6, Hiro was appointed to serve as the team's field leader. He continues to maintain a civilian life and attend classes at the Tesuka Institute, although his teachers and classmates are unaware that he moonlights as a secret agent.
Category:Synopsis