Touka, a housewife living with her husband and daughter. She had given birth to her daughter in her teens and had been busy raising her, which had led to a distant relationship with her husband at night. However, Touka's neglected body strongly attracted her son-in-law, Kohhei! Unbelievably beautiful for a mother-in-law, and disgustingly large breasts... Living close to Touka, Kohhei's reason gradually collapsed, and he forcefully committed adultery within the family! 'That person... that child is here, so no...!' While Touka verbally rejected him, she was gradually satisfied by her son-in-law's strong sexual desire.
