Erester, a daemon, wants the end of humanity! However, his goal seemed impossible after his defeat by Gael, the Warrior Saint. With his decapitated head flying away from the rest of his body, Erester was overcome with regret for having spared that same Gael years ago, when he was still a defenseless child, for no apparent reason. However, once again Erester awakens, conscious and whole. What are Gael's objectives in returning the same clemency?

Follow a BL story between two enemies and see if the cycle of hatred can truly come to an end!