After missing the last train at a company drinking party, new employee Chika barged into his house while he was fighting with his wife who had gone back to her parents' place. As soon as she got home, Chika fell asleep, but unable to resist any longer, he inserted himself into her. Later, when Chika suddenly came over on a day off and threatened him about 'that night,' he was toyed with by the mischievous new employee!
