A man named Shinazugawa Sanemi was caught by the demons and forced him to kill humans to survive and save his family. Heart filled with determination, anger and hatred. They were given a mission to find the village and slaughter them with his bare hands however, he met a woman who suddenly gives him hope, happiness and... love. And also, she reminds him of his mother by the way she touches him. However, his mission came back to his mind and needed to kill them even the woman he "loves". Which one should Sanemi choose? Kill them in order to free his family? Abandon his mission and his family behind to protect the village? All characters belongs to the original author Koyouharu Gotouge.