Koho Hirata

Nurse Rinko works at a hospital where intern Yoshioka joins the staff. Rinko falls in love with Yoshioka at first sight. Yoshioka becomes captivated by Ayakoji Mika, a dominatrix among the hospitalized patients. Rinko witnesses Mika engaging in sexual activity in the examination room late at night. Who is Mika's partner?

A yakuza boss is brought into the hospital where Rinko and the others work. Rinko and her friends are surrounded by the gang's henchmen and subjected to all sorts of commotion, including having their bottoms touched. One day, as her colleague Michiyo is leaving work, she spots a suspicious man. The man introduces himself as photographer Kitajima and asks Michiyo to let him secretly photograph the boss. To achieve his goal, he gently embraces Michiyo, but...

Rinko still has feelings for Dr. Yoshioka, but there is no progress whatsoever. Her colleague Michiyo tells her to "make up your mind!", but the indecisive Rinko can't bring herself to confess. Hearing this, Megumi suggests they sneak into Yoshioka's house. The three of them, dressed as female ninjas, break into Yoshioka's house, but the hospital's head nurse, Ibuki, is there...