Do you like beautiful ladies?

Nephew Hideki visits the Tachibana family to celebrate Ayano and his wife getting their dream home. That night, Hideki ends up staying at the house and accidentally witnesses what Ayano and his wife are doing. Hideki is rendered speechless by the lewd appearance that he can't imagine from the innocent Ayano he usually sees, but... The next day, Hideki visits the house again and sees Ayano, who was not satisfied with the sex she had with her husband the night before, masturbating while holding the phone in one hand. Hideki can no longer suppress his forbidden feelings for his aunt...