Nurses' Dormitory: A Hidden Diary (2002)

Nurse Akemi Eguchi is so busy with work that she has no luck with men, and spends her days drinking and complaining with her colleague Kumiko, who lives in the same dormitory. One day, Akemi is seduced by Miyamoto, a popular doctor at the hospital, and spends the night with him. The next day, Akemi bumps into a man on crutches, Nishida, while at work. He sees through Akemi's absentminded behavior and realizes it's because of her tryst with Miyamoto the previous night. "You're just being played," he says, and Akemi is shaken...