Rei is an employee of a famous hotel, she has a hobby that she can't tell anyone. That is... seducing men who have girlfriends or families and having sex with them! In the empty rooms of the hotel, in the non-smoking rooms or the kitchen... Regardless of the time or place, as long as Rei feels in the mood, she will seek out men and have sex with them! Let's follow the daily life of this lascivious hotel employee.