Meisa, who works for a real estate company, accompanies the development department head on a business trip. After a negotiation, they discover a mix-up where they end up sharing a room. Reluctantly, they drink alcohol in the room, and the department head listens to Meisa's stories about her boyfriend. However, these flirtatious tales begin to unhinge the man's rationality. Suddenly attacked, Meisa unexpectedly finds herself being taken advantage of, experiencing intense sex... They repeatedly engage throughout the night in the room's hot spring...
