Ritsu Shiraishi is a super capable hotel concierge who helps private detective Kurose out of personal interest. One day, while investigating a politician’s affair, Kurose discovers that Ritsu regularly meets the politician. Driven by jealousy and anger, Kurose tries to sleep with him, but finds that Ritsu also likes Kurose. So they are in love with each other. But is it a mere coincidence? It seems like Ritsu is keeping a lot more secrets...