In the heart of Shinjuku, there are a variety of nightclubs open to customers who seek a night of indulgence alongside gorgeous companions. Yamada is one of those companions, working part-time while attending university. Though lately, Yamada finds it easier to become the model hostess rather than a star pupil. She keeps to herself, follows the written and unwritten rules of hosting, and doesn't bother getting entangled with anyone if she can help it. That is, until Mii-chan stumbles into her life.