Erio, who works as a waitress at a popular inn, is admired by her colleagues as an older sister, but she is super M on the inside. However, she has recently noticed that among the men she works with, there is a sadistic boy she really likes - 人気旅館の仲居として働く絵梨央は姉御肌で同僚からも慕われているが、中身は超ドM。 ところが最近、一緒に働いている男衆の中にめちゃくちゃ好みのドS男子がいることに気がついて――