Ichinose Shiki's blood is Oni, and his father's is Momotarou. Normally, those with Momotarou blood hunt the Oni—but Shiki's father refused to kill him as an infant. Instead, he adopted Shiki and raised him despite the rebellious attitude and dangerous temper that comes with Oni blood. When a member of the Momotarou Agency kills Shiki's father, he vows to avenge hm. But as Shiki hones his abilities and learns to control his Oni blood, will he be strong enough to survive the dangers waiting for him...?

Source: Yen Press

Note: The first episode received an early screening at a special event on 7 June 2025 at AFA Indonesia in Jakarta. Additionally, the first three episodes received an early screening at a special event on 21 June 2025 at United Cinemas Toyosu in Tokyo. The regular TV broadcast started on 11 July 2025.

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Sequel: Tougen Anki: Nikkou Kegon no Taki Hen