This film depicts the relationship between a newly hired young employee and the women supporting him at work. The targets are Mirei, an office lady at a stationery company who handles field sales, and Yoshida-kun. During the investigation, it's revealed he has emotional trauma related to romance from his school days and is a virgin who's never even kissed a girl. To help heal his heart, she approaches him under the guise of a supportive superior. Despite hesitation over increasingly generous payments, she continues giving him advice on sex. During a dry-humping session meant as practice, things escalate out of control into unprotected intercourse. Ignoring his pleas to stop, she ultimately cums inside him multiple times in a massive creampie.