Tougen Anki

In the world of Tougen Anki, the ancient bloodlines of the ferocious Oni and the legendary hero Momotarou have been passed down through generations of humans. For millennia, their descendants have been locked in a secret war, organized into the opposing Oni Agency and Momotarou Agency.

The anime follows Shiki Ichinose, an ordinary young man whose life is shattered when he is violently attacked and discovers his hidden heritage as an Oni. Thrust into a conflict he never knew existed, Shiki must confront the powerful destiny within his blood and meet the demonic force that dwells inside him. This is the beginning of a dark, generational saga where the line between hero and monster is blurred.