Ping'er, just like the pronunciation of her name, has an ordinary life experience, ordinary appearance and ordinary life. As Ping'er, she may always look up to the young lady in her family, the woman whose name is filled with brilliance, the woman who is the most beautiful in the city, the woman named Wang Xuzi.
For five years, as Ping'er, Wang Xuzi has been with the woman who has the same appearance as her former self every day. She doesn't know who that person is, let alone who Ping'er is. While constantly searching for memories, she discovers that the truth is getting more and more terrifying, and a huge conspiracy has surrounded her. . . . . .