Eri and his wife moved to an apartment for rent in Tokyo after their husbands worked at the headquarters. Kanno, his kind neighbor, runs a shady investment at home. Kanno, who liked Eri at first sight, approached Eri and tried to satisfy her desire. On the other hand, Koji, who is busy working at the headquarters, did not know that he was about to become sexy and the relationship between his beloved wife and Kanno.