IPX-321 _Send your wife to a high school reunion and the ending

Eri has a happy life with a husband who always loves her. The only thing is, Eri's husband is very busy and can't spend much time with her. They both haven't had sex in a long time. Today is the first high school class reunion since graduating, Eri meets her friend Yuka again. Yuka and her husband have not had sex for a long time, so she wanted to ask Hamano for advice. To help Hamano, Yuka invited Eri to organize a party at Eri's house. But while preparing to eat, Yuka had to rush home, leaving only Eri and Hamano. Actually, Hamano has liked Eri since he was in school. When he met her again, he couldn't control his emotions anymore. Eri resisted at first, but her body betrayed her...