UGUG-039 - Model Student Outside, Predator to His Own Mother Inside

“Please, stop… no, don't, mercy…” Every night, Hayato hears his mother's moans from the master bedroom. Despite knowing it's wrong, he can't stop peeking. The image of his mother's red, slapped buttocks haunted him for years. Now, 7 years later, the brilliant student returns home to a twisted reality.