Kyousuke decided to stay over at his classmate Kazuma's house to study for exams. There, he was captivated by the voluptuous body and intense allure of Kazuma's mother, Kayoko. That night, Kyousuke woke up to a strange noise and left his room... Only to see Kayoko riding her husband with wild abandon. Kyousuke spent a sleepless night, too excited to sleep after witnessing the entire scene. The next day, he met Kayoko again, but he couldn't stop thinking about her lewd behavior from the previous night.
