Chijou Saikyou no Otoko Ryu

Karate fighter Raion Ryu possesses such overwhelming strength that he accidentally obliterated an opponent during a sanctioned match, reducing him to steaming remains. As penance for this catastrophic display of power, Ryu dons a mask inscribed with sutras to suppress his abilities and goes into hiding alongside his psychic sister. Their seclusion is shattered when they are pursued by Ryu’s former master and the fiancée of the man he killed. Although their quest appears driven by vengeance, they are actually following divine orders: they must destroy Ryu before he awakens as the Antichrist. God himself has issued a death sentence against the masked martial artist.