"Do you think your life is not perfect enough? Do you want to exchange your life with someone you admire?" As Song Fan gradually fell into the temptation of the life exchange app, bizarre life exchanges began to occur frequently. Song Xiaoran, a wealthy daughter who lived a carefree life, and Li Hui, the top student in the class who was recommended to H University for his outstanding academic ability. , Liu Wenwen, a popular actress with a perfect figure and innocent beauty, each name written by Song Fan himself, each life that Song Fan envies and wants to exchange, is it really as beautiful as she sees, "happiness" requires paying a price, are you ready?