A new life of a dream harem with a married woman next door who fights me, who is extremely sexual.

Maki and Mizuki, who live on the same floor of their apartment complex, were having a lot of fun talking about sexlessness with each other's husbands today. Meanwhile, a young man named Yamada moved to Tokyo to the same floor as the two married women. It didn't take long for Yamada to attack the two married women with a strike. That same day, Maki comes to Yamada's house to help unpack the luggage, and Mizuki comes to share dinner. The reverse threesome that began with frustrated married women is just the beginning of a new life in a dream harem...