My husband doesn't know - my lewd desires and secrets

One day, the Sasaki couple meet again by chance with their husband's student Atara. Ataru, who had always secretly thought of his wife Aki, was invited to his home, dropped the key and went home... The next day, Ataru comes to pick up the key, and the emotions he has accumulated so far explode, pushing Aki down. Her body doesn't listen to her and accepts her as she is relentlessly stimulating her. Aki refuses Ataru, who has been persistently asking for a relationship from that day, but the pain in her body deeply shakes her mind...