Rieko, who is in the prime of her life, lives happily with her beloved husband, but recently her older husband has repeatedly broken down, and Rieko has become unsatisfied.At that point, her husband's brother, who was in her restructuring, moved to Tokyo to find a job for her and stayed for a while.Her brother-in-law's job hunting isn't going well, so the three of them have a drink to cheer him up.Shortly after, her husband, who got drunk, went to the bedroom with her brother-in-law and Rieko.Then her brother-in-law hugged and kissed her Rieko.The next morning.Rieko and her brother-in-law were a little embarrassed by her husband, who said she was drunk and had no memory.That night, when her husband was taking a bath, Rieko was hugged and kissed again by her brother-in-law.She resists, but Rieko is confused when her brother-in-law's hardened crotch is pressed against her, and as her brother-in-law says, she has her hardened crotch in her mouth.