Hotel staff member Nagisa Koyo is responsible for accommodating newlyweds. She is strikingly beautiful and elegant, appearing at first glance to be an impeccable hotel employee. However, she is actually a rather wicked woman who frequently has affairs with guests' husbands or boyfriends. She takes advantage of the wives' inattention to seduce the husbands, repeatedly engaging in "stealing husbands" sex within the hotel. This behavior has become a habit of hers.