Big Boobs Sisters: The Yellow Panties of Happiness.

After serving his sentence, Tachibana goes to the apartment where his ex-girlfriend used to live. There are yellow panties hanging out to dry on the balcony. Overwhelmed by the fact that she had been waiting for him, Tachibana buries his face in Sister Emi's (Orihara Yukari) chest as she opens the front door, and as he pushes her down forcefully, she screams. From the back, Reiko (Kayama Natsuko) and Kaori (Iori Ryoko) appear dressed in nun's robes, causing a commotion... The two girls make a living by using one room in the apartment as a "church," volunteering to contribute to the community during the day and running a nun's bar at night. Tachibana is dejected that there is no woman waiting for him and tries to leave, but the three girls stop him...