Love can transcend time, even if you look back in time and lose everything you have.
The time clock reverses the flow of space. Eleven years later, Li Yi traveled across time and space and returned to the past where he was absent, just to change the future and the predetermined ending between him and Si Niannian.
"It doesn't matter if the whole world doesn't remember me, or if I lose everything I have now, time has erased everything in my past. As long as I can meet you again, that's fine."
Intent: Campus love that reverses time and space in the future