The Eri couple who moved to a rental condominium in Tokyo after their husband worked at the head office on a sunny day. Sugano, a kind neighbor, is a man who is doing a shady investment business at home. Kanno, who likes Eri at first glance, approaches Eri and tries to satisfy her lustful desires. On the other hand, Koji, who was busy working at the head office, remained unaware of the fact that he was becoming sexless and the relationship between his beloved wife and Kanno.
