A secret game of secrecy takes place in a room at a luxury hotel in the city center. Yumi Nijimura works as a receptionist at a foreign company. She is well-regarded for her smiling face and customer service, but she also has a secret. The only ones who know about it are the men waiting in the guest room. These cowardly and cunning men take advantage of this and blackmail the woman. To protect her own status, she has no choice but to submit to the men, even though she doesn't want to.