Takuma Miura once governed the Shoshidai, an institution safeguarding cursed weapons, balancing his duties as a revered leader, virtuoso musician, and caring father. His wife’s demise fractured this equilibrium, driving him to wield the demonic blade Zsoltgewinn in a desperate bid to shield his surviving family. The sword’s corruptive power mutated him into a Busoma—a monstrous entity enslaved to its bloodlust. Shedding his humanity, he embraced the sword’s identity, his hair bleaching white and attire morphing into austere black suits and coats.

As a Busoma, he commanded superhuman strength, shadow manipulation, and destructive energy beams that annihilated armored vehicles and leveled buildings. His combat mastery let him dismantle armed forces single-handedly and duel adversaries like Gai and Seiya with chilling efficiency.

The narrative’s crux lies in his fatal stabbing of daughter Kyouka Kagami—a final atrocity as Zsoltgewinn’s consciousness eclipsed his own. This act crystallizes his fractured identity: though he declares himself wholly the sword’s vessel, flickers of Takuma emerge during clashes with Kyouka, revealing the man beneath the monstrosity.

His rampage against former Shoshidai allies and relentless opposition to protagonists propel the story’s conflict. Ultimately, Mikazuki’s purification briefly restores his humanity, but Grimms executes him to claim his power, ending his arc with sacrificial redemption.

Behind his fall lay a man unraveled by grief, whose love mutated into destructive obsession. The tale intertwines his bond with Kyouka—her desperate experiments to cure him, her futile appeals for mercy—with broader themes of corruption, eroding selfhood, and cursed weapons perpetuating violence. His legacy embodies both the fragility of human resolve and the irreversible cost of surrendering to darkness.