The story tells that Mira, who is in her 40s, has lived in Paris for more than 20 years. Having just divorced her French husband, she decided to go to Korea and met her old friends Yang en and Song Yu, who took drama classes 20 years ago. When Mira had a good time in the bar, she went to the bathroom, and when she came back, she went back 20 years. This is Mira's farewell party before leaving for France. Before figuring out whether Mira was hallucinating, she went through a series of mysterious things.