Yuki, the son, feels his heart pounding upon reuniting with his mother's friend, Ayaharu, who has come to stay for work. One night, after drinking too much and passing out beside his mother and Ayaharu, Yuki wakes up in the middle of the night to find… Ayaharu, unable to sleep due to her intoxication, engaging in self-pleasure in the bedroom. In the awkward atmosphere, Yuki, unable to suppress his excitement, impulsively embraces her… Although Ayaharu accepts his forceful approach, she acts as if nothing happened the next morning. However, Yuki, who cannot forget the pleasure he once experienced…
