Hiroshi, a university student, visits his girlfriend's house after dating for half a year, and is captivated by the beauty of her mother, who welcomes him there. His friend Takuya, who was in the same group, was also fascinated by his mother's gentle smile. Hiroshi, who was supposed to stay at her house that night, left the room without falling asleep, and gently stuck to his mother and plunged into forbidden sex without stamina. And even Takuya, who knew the truth, was wrong …!
