As an ordinary high school student, Su Luo lives a life of going out early and coming back late like everyone else. Although she occasionally reads time travel and rebirth novels, she has grown up under the red flag for 16 years, but she doesn't believe it at all. But who can tell her why she changed places as soon as she woke up. She doesn't like time travel because she thinks about what her parents will do if she travels through time, and no one can have such intimate feelings for a pair of strangers, so what should she do when she travels through time...