Tougen Anki

桃源暗鬼

Shiki Ichinose, a rebellious teenager raised by his adoptive father Tsuyoshi, discovers he is an Oni after assassins attack their home. Tsuyoshi — a former Momotarou, one of the demon-hunting warriors descended from the folktale hero — dies protecting him, and Shiki is pulled into the centuries-old war between Oni clans and the Momotarou order. Vowing revenge, Shiki must learn to control his awakening demon powers while hunted by both sides.