Ai's husband was hospitalized due to illness, so she came to take care of him. Because of his illness, her husband's ability to have sex is not good, so Ai always feels disappointed. One day, Iida was admitted to the hospital and was given a bed next to Ai's husband. He accidentally discovered Ai doing it with her husband, then Ai witnessed Iida masturbating and fell into an awkward position. But because her sexual desire was so great, she went to Iida's bedside and secretly had sex with Iida right next to her husband...