Synopsis
The story centers on Rin Okumura, a boy with unusual strength and stamina who, together with his twin Yukio, grew up under Father Shiro Fujimoto, an Exorcist. Everything shifts when Rin discovers he and Yukio are actually the children of Satan himself, the most powerful demon in existence. When Shiro sacrifices himself to shield Rin from harm, Rin breaks the one rule his guardian set: he unsheathe Kurikara, the demon-slaying blade that keeps his dark powers locked away. The moment the blade leaves its sheath, Rin transforms—fangs push through his teeth, his ears sharpen to points, a tail sprouts from…
