Three sisters live alienated existences in modern day Tokyo. One works as a secretary, one is a prostitute, and one is a criminal. The secretary is cynically unhappy with the sexist business world which limits her opportunities for advancement and makes her a target for her lecherous boss. The prostitute lives an aimless life, drifting between men, and often the target of either police or jealous wives. The criminal, who lives by disrupting the society which oppresses her two sisters, is the only happy one of the three.

The lovely Ryoko is attending a Japanese University on an exchange program. She’s pretty, vulnerable, shy and full of mysterious secrets. Meeting up with her long-time friend Rumiko, Ryoko shuns her aggressive lesbian advances by saying she’s still a virgin. Rumiko is surprised at this revelation and, over the next few days, she takes Ryoko on a series of misadventures to help her with her sexual awakening...