Gian, formally named Takeshi Goda, is a central character in the "Doraemon Comes Back" storyline. A physically strong and domineering elementary school student, Gian frequently bullies his classmate Nobita Nobi. His typical behavior involves chasing Nobita to physically intimidate or harm him, often prompted by minor provocations or his own aggressive tendencies. Within this narrative, Gian's actions directly trigger key developments. After Doraemon announces his return to the future, Nobita resolves to prove his independence by confronting Gian without gadgets. Gian initiates a physical fight, punching and injuring Nobita, but Nobita fights back persistently until Gian concedes defeat. This outcome allows Doraemon to witness Nobita's resilience before departing. Following Doraemon's departure, Gian collaborates with Suneo to deceive Nobita by impersonating Doraemon, intensifying Nobita's distress. This cruelty motivates Nobita to use Doraemon's "Lie 800" gadget, causing the opposite of spoken statements to occur. Gian suffers consequences when his declaration that his mother wouldn't intervene results in her forcibly dragging him away. Despite his antagonistic role, Gian displays contrasting behavior in the resolution. He joins Shizuka and Suneo in visiting Nobita to offer comfort upon Doraemon's unexpected return, showing a capacity for camaraderie. Broader character traits contextualize Gian's actions. He habitually takes others' belongings under the guise of "borrowing," declares ownership with statements like "What's yours is mine and what's mine is mine," and fears his mother's punishments for his delinquency. While aggression defines much of his conduct, instances across the franchise suggest an underlying loyalty to friends during crises, though this aspect remains less prominent in this specific story.