A demon is cursed by the demon king and exiled from his realm. Forced to live a troubled life among mortals on Earth, the demon wants to end his life. However, he cannot do so until he has corrupted the hearts of a thousand pure men. Along the way, he gains super-human strength and powers of persuasion to aid him on his mission. Unfortunately, he falls in love and must decide if he will corrupt the heart of the man he's fallen in love with.