Mirei is looking for a job after losing her husband. What suddenly caught Mirei's attention was the work of "companion", which was written as "inexperienced welcome". She successfully finished the interview, and she decided to work at a certain hot spring inn. However, from her first day, Mirei felt a sense of incongruity. She has a costume that clearly seduces men, and even though it's supposed to be a "banquet", she has to deal with a man one-on-one. After that, Mirei comes to know. She said that this is a hot spring town famous for "Slave Companion".
