Takeshi Goda, widely nicknamed Gian, emerges as a recurring figure exerting significant influence on the central dynamics. His background establishes a physically imposing child prone to aggressive behavior, frequently leveraging his strength to dominate peers and confiscate their possessions under the guise of borrowing. This conduct most often targets Nobita Nobi, whom Gian subjects to physical intimidation and verbal abuse, declaring, "If I don't bully Nobita a day, I can't eat and sleep." Gian's family environment contextualizes aspects of his personality. He operates under the strict authority of his mother, who runs a local grocery store; her mere voice incites fear and prompts his immediate retreat. Protective instincts surface strongly regarding his younger sister, Jaiko, whom he fiercely supports, sometimes employing unconventional methods or gadgets to aid her manga writing pursuits, albeit with mixed results. This juxtaposition of aggression and familial loyalty underscores his multifaceted nature. His interpersonal relationships reveal further complexity. Gian maintains an uneasy alliance with Suneo Honekawa, who often acts as a subordinate or informant. While Gian occasionally directs aggression toward Suneo, their dynamic fluctuates between camaraderie and exploitation. Interactions with Shizuka Minamoto show slightly more restraint, moderating his behavior upon her disapproval, though he remains capable of lashing out if provoked. Notable contradictions define Gian. Despite his antagonistic role, he demonstrates genuine empathy and solidarity during crises, exhibiting concern for Nobita’s safety – preventing falls or offering medicine during illness. These moments suggest an underlying, albeit inconsistent, valuation of friendship. Gian also harbors significant delusions regarding his talents, possessing complete confidence in his singing and culinary abilities despite their universally negative reception, often forcing peers to endure concerts or taste tests under duress. Within *Stand By Me Doraemon*, Gian catalyzes pivotal developments. His relentless bullying motivates Nobita to seek Doraemon’s assistance. The film’s climax features a physical confrontation initiated by Nobita to demonstrate self-reliance; Gian responds with overwhelming force but eventually relents due to exhaustion from Nobita’s persistent resistance, inadvertently aiding Doraemon’s peaceful departure. Gian’s broader franchise arc includes moments of introspection. Facing social isolation during his birthday, he briefly acknowledges his unpopularity and attempts self-improvement, though these efforts falter under mockery. His leadership of the neighborhood baseball team, the Giants, illustrates his competitive drive and frustration with perceived weaknesses in others, particularly Nobita’s athletic shortcomings. Distinctive traits solidify Gian’s identity: his catchphrase declaring ownership ("What's yours is mine and what's mine is mine"), his feared singing voice repurposed as an unconventional weapon in adventures, and his favorite food being stuffed capsicum. Combined with sporadic displays of loyalty and vulnerability, these elements create a character whose impact extends beyond simple antagonism into nuanced contributions to the series’ exploration of friendship and conflict.