All roles are performed by adults. After accepting a marriage proposal, Momo begins a happy newlywed life in Tokyo, only for an unexpected development to send the couple to the rural town where her father-in-law lives. She has never met him and already feels uneasy about sharing a home. When they finally meet, his face seems strangely familiar. He is the vile groper who molested her every morning during her adult school role-play days. Grinning at her recognition, he waits until nobody is watching and attacks her again.