006KEED-85 I peeked at my boyfriend's smartphone and he was having rough sex with my mother.

Kaori frequently brings her beloved boyfriend, Atsushi, to her parents' house because she doesn't have the funds for dates.Her mother, Saki, welcomes Atsushi.They are a happy-looking couple and a mother, but in fact, Atsushi and Saki are in a physical relationship hidden by Kaori.The two continue their relationship secretly so that Kaori doesn't find out, but one day when Kaori peers at Atsushi's smartphone, she discovers their relationship...