Kirishima Mika is a university student who is looking for a job. Her friend Mai, brings Mika to work part-time at a cabaret club in Roppongi. At the club, Mika sees various women working there. Saki is the top working girl there, but her dominance is threatened by transferee Arisa. Yuma is pregnant and she plans to raise her child by herself. Yuka orchestrates sexual favors and takes a cut of their profit. Mika is shocked by this world which she never knew about.