Takeshi Goda, universally known as "Gian" or "Gegant," stands as a central figure in the Doraemon franchise. His imposing physical stature and aggressive demeanor cement his role as the neighborhood bully. Gian routinely dominates other children through force, especially targeting Nobita Nobi, seizing their possessions under the guise of borrowing while declaring his infamous catchphrase: "What's yours is mine and what's mine is mine." Despite this intimidation, Gian reveals sporadic flashes of compassion and fierce loyalty. He guards his younger sister, Jaiko, with unwavering protectiveness, aiding her comic book projects using Doraemon’s gadgets—though his clumsy help often irritates her. He also displays genuine concern for friends in peril, rescuing Nobita from danger or providing medicine during illness. Fear defines his relationship with his mother, whose interventions momentarily halt his bullying. Gian exhibits profound overconfidence in his meager talents. He demands audiences for his ear-splitting singing concerts, enforcing attendance through threats of violence. Similarly, he touts himself as a culinary expert despite producing universally revolting meals. As captain of a local baseball team, he coerces teammates like Nobita into playing, then scapegoats them for losses. His interactions expose layered contradictions. While bullying Nobita and Suneo Honekawa relentlessly, he depends on them for companionship and aid. Suneo serves as his sidekick yet occasionally betrays him, particularly to exploit Doraemon’s gadgets. Gian treats Shizuka Minamoto with rare restraint, avoiding direct targeting but ignoring her aversion to his singing or cooking. His dynamic with Doraemon wavers between collaboration and aggression when challenged. In the special "Doraemon: What Am I for Momotaro," Gian embodies a comedic monkey in a Momotaro retelling. He follows Nobita’s Momotaro alongside Suneo and Shizuka as animal companions, clashing with rivals over heroism yet arriving too late for the main battle. Throughout media, Gian’s character persists as an intermittently empathetic bully without long-term evolution. Future depictions show him maturing into a responsible father, reflecting earlier glimpses of his core values.