My fiancé, Koji, has a teenage son named Satoshi. Today marks the beginning of my life with my husband and Satoshi, but Satoshi, who knows neither a mother's love nor how to rely on adults, only coldly rejects me... However, one day I discovered he was peeking at me while I was bathing. I tried to tell Satoshi that what he was doing was wrong, but instead, he roughly expressed the forbidden feelings he had hidden inside...