Katta Kirifuda, younger brother of Shobu Kirifuda, emerged from a traumatic infancy marked by a three-year vegetative state. His awakening, triggered by grandfather Katsuzo’s curry bread, forged an inseparable bond with the food that shaped his identity. The disappearance of Shobu during a fateful duel cemented Katta’s resentment toward Duel Masters, which he blamed for his brother’s presumed death.

Initially scorning the game, Katta’s path shifted when Dragon Ryu’s challenge pushed him to duel. With allies Benchan, Yohdel, and Bucchake mentoring him, he evolved from tournament losses and borrowed decks to crafting a Fire Civilization strategy, wielding Shobu’s inherited Raging Dragon Lord. His defining "Victory Mode," activated by a forehead "V" scar, unleashed aggressive tactical brilliance echoing his brother’s prowess—a dual nature he gradually mastered without sacrificing his humor or loyalty.

Through successive arcs, Katta ascended from novice to strategist, blending Fire with Nature and Darkness Civilizations. The Victory saga saw him command Gaial King Dragon and Revolutionary race cards, while the Versus Revolution Final season showcased Fire-Nature hybrids like Team Hamukatsu, featuring evolved allies Dogiragon, Flaming Revolution, and Katsuemon. His climactic duel against Basara epitomized his ingenuity: creating Curry Bread of the Universe to neutralize Dormageddon X, merging whimsy with tactical brilliance.

Post-Versus Revolution Final, Katta embraced roles as Cosmic Biology professor and family man. Marriage to Lulu Takigawa and fatherhood to son Joe mirrored Shobu’s mentorship legacy, balancing guidance with playful rivalry. His adult deck retained Fire elements anchored by Gaial, Victory Legend—a card embodying his enduring influence.

Relationships defined his complexity: rivalry-turned-respect with Shobu, steadfast bonds with Leo Hyakujuu, and a partnership with Lulu blending comedic friction and devotion. Confrontations with antagonists like Basara and Utsubomi Kazura highlighted his dual commitment to human and creature realms, often resolving conflicts through unconventional tactics.

Physical changes mirrored inner growth: the fading "V" scar after final battles, a matured stature, and practical black jackets replacing youthful attire. Deck box designs evolved alongside strategies, charting his progression from basic Fire builds to Revolutionary race synergies.

Legacy extended beyond dueling—guiding Joe’s journey, bridging worlds as a scholar, and symbolizing resilience through his transformation from curry bread-fueled youth to visionary mentor. His story wove familial bonds, strategic evolution, and the balance of inherited legacy with self-forged identity into a singular narrative of growth.