yuna works as a concierge at a luxury hotel in tokyo. one day, she goes to a room to deal with a complaint from an important customer who is a shareholder, but she touches the customer's nerves by being told that "her attitude is bad". in fact, it was a trap by a customer who was trying to corrupt yuna, and yuna is strangled and fainted. from there, the terrifying hotel imprisonment training begins. bondage shame play, toy ejaculation, throat fucking irrumatio, raw sex fuck. yuna's mind gradually goes crazy――.
