Niko is cast in the main female role in the stage play "Clingy Girlfriend". In contrast to her role, she is unable to express her feelings to the manager of her part-time job, who she has feelings for. When her manager's ex-wife appears at their place of work, Niko's love only grows. Meanwhile, Kaburagi, author of the source novel of "Clingy Girlfriend", lives in obscurity. After his new novel is harshly put down by the publisher, he is told that his editor and former lover, Chi-bou, is leaving the publishing house, and his love for her is rekindled.

A college boy, Tsubasa, often enjoys to chat with his best friend, Makoto, and Makoto’s girlfriend, Risa. However, he suffers financially due to a dismissal of his father from a company he works for, so his friend, Makoto tests his sexual ability by sleeping with him, to introduce him to a money making industry of prostitution. Then, relation of the three dramatically changes.