Nozomi, a young wife glasses nurse who was supposed to take care of Omachi, a big penis patient who was hospitalized at Manami Clinic. Due to her occupation, she should be used to seeing male genitalia, but when she sees Omachi's non-standard big cock, Nozomi gets excited. One night, Nozomi, who was looking around the hospital room, witnessed Omachi masturbating with both hands. When Omachi confesses that she can't sleep because she's accumulated, Nozomi helps her with masturbation.