A closed-room 'discipline' game held in a luxury hotel suite in the heart of the city. Sayu works as a receptionist at a foreign-affiliated company, reputed for being excellent and having a charming smile. However, she has a secret. The only ones who know it are the men waiting in the guest room. Taking advantage of her, these cowardly and cunning men blackmail her. To protect her status, she has no choice but to comply against her will. Every time she is summoned to the room, she is toyed with. No matter how much her body is sacrificed, her heart will never yield; that conviction is the only way she protects her self-esteem. Yet, her contempt and anger toward the men do not disappear. For some reason, her feelings are shaken, and another self arises, becoming aroused through resistance. She is already leaning towards masochism. Her inner struggle and suffering are seen through by the men laughing at her side as she is gradually suppressed and swayed. The more she persists, the more her true feelings are exposed. The woman is ruthlessly insulted and oppressed, left with no choice but to surrender...