

Joined by Baymax, a synthetic bodyguard capable of synth-forming into a dragon which was created by Hiro using the brain engrams of his dead father, Hiro reluctantly joined forces with Big Hero 6 to prevent Everwraith from slaughtering millions in downtown Tokyo. Unimpressed with the Silver Samurai, Hiro declined joining the team until his mother was kidnapped by the Everwraith, the astral embodiment of all those killed in the 1945 nuclear attacks on Hiroshima and Nagasaki.

Government scientists next identified smart boy genius Hiro Takachiho as a potential operative. Oshima was appointed as the Giri's spokesperson and coordinated Big Hero 6's activities. The Machiavellian bureaucrat known only as Mr. The tough-talking Gogo Tomago, able to transubstantiate her body into a fiery force blast by uttering her code-name, was released from prison on the condition that she serve on the team. Secret agent Honey Lemon, inventor of the nanotechnology-based Power Purse from which she could access any object, also agreed to join the team. Despite reservations by some members of the Giri, Silver Samurai, a freelance ronin and former bodyguard of the terrorist Viper, was appointed as field commander of the group. When the Japanese government wanted a team of state-sanctioned superheroes at their disposal, a top-secret consortium of politicians and business entities known as the Giri was formed to recruit and train potential superhuman operatives for "Big Hero 6".
