In a fantastical Japan where two samurai clans have been waging a merciless war for generations, fighters can use special powers called "Bankai" to strengthen their combat abilities. These powers draw their energy from negative emotions such as anger, hatred, and sadness. The Tenshi clan, led by the cruel and merciless Daimyo Kurogane, uses these emotions to establish their power and enslave the surrounding lands. on the other side, the Akuma clan, led by the wise and just Daimyo Hikari, tries to protect the people from the abuses of the Tenshi clan. In the middle of this conflict is Rin Fushiwara, a young samurai from the Akuma clan. Unlike her peers, Rin draws her power from positive emotions such as compassion, joy, and love. This particularity makes him a target for the Tenshi clan, who see him as a potential threat. despite the pressures and dangers that surround him, Rin refuses to be corrupted by the darkness that inhabits the Tenshi clan. With the help of his friends and allies, he will try to put an end to this fratricidal war and bring peace to his country. With his determination, courage, and ability to draw light from even the darkest places, Rin Fushiwara would become the symbol of a new beginning for the samurai clans, uniting the two factions under one banner and ending centuries of hatred and violence