Gaō Mikado embodies unwavering justice and protective resolve, adopting the mantle of the Mighty Sun Fighter to honor a comic crafted by his late brother, Yota. His destiny ignites upon summoning Drum Bunker Dragon through a Buddy Rare card, propelling him into Buddyfighting. As his skills evolve, so do his bonds with companions like Bal Dragon and Batzz, each reflecting his shifting tactics and personal growth across tournaments such as the ABC Cup and Gaen Cup. Though brimming with fiery optimism, Gaō’s past harbors a shadowed obsession with victory that once drove him to endanger others. Haunted by remorse, he redefines Buddyfighting as a bridge for camaraderie, tempering his impulsiveness with compassion. This transformation shines in his mended rivalry with Rouga Aragami and his steadfast support for Kiri Hyoryu amid battles against doubt and manipulation. A strategist at heart, Gaō masters diverse decks from Dragon World to Thunder Empire, deploying mechanics like Impact Monsters and Overturn with tactical precision. Leading Team Balle du Soleil, he unites allies against adversaries like Disaster and the Hundred Demons, even risking his well-being with the volatile Future Force to dismantle threats such as Kyoya Gaen’s stronghold. Central to his journey are relationships that shape his legacy: a rivalry matured into friendship with Tasuku Ryuenji, a mentorship role toward Bal Dragon, and familial ties anchored by his mother Suzumi’s teachings in Mikado-style Aiki-jujutsu. His life expands with marriage to Paruko Nanana and fatherhood to Yuga and Haru, culminating in a move to America that passes the torch to Yuga. The GGG Cup in *X: All-Star Fight* reunites Gaō with past comrades and rivals, celebrating his evolution from a luck-dependent novice to a symbol of unity and growth. His final chapters reveal a seasoned warrior prioritizing mentorship and family, cementing his enduring imprint on Buddyfighting as a champion of shared strength over solitary triumph.