Yutaka Tendo is a boy who forgot that he is an angel. Yutaka falls in love with a human girl Sakuya. Yutaka decides to confess her by the time of Christmas, but Sakuya seems to like another boy. Should Yutaka preserve his love or let passion break through? Little by little he starts to remember that he is an angel. It gets more and more difficult to come up with answers...
