Forgive me... Neighbor's lust 4

The Eri couple has finally arrived at their husbands working at the head office and move to a rental apartment in Tokyo. His friendly neighbor, Kanno, is a man who runs a shady investment business from home. Kanno, who likes Eri at first glance, approaches Eri and tries to satisfy her lewd desires. Meanwhile, Koji, who was busy working at the head office, was not aware that he was about to become a sexless person, and that he was still unaware of his relationship with his beloved wife and Kanno...