Qiao Lan was a bad girl in her previous life.
He skipped classes, got into fights, chased good-looking boys all over the streets, hurt others, went to jail, and finally killed himself.
The man she loved married someone else on the day she died, leaving her alone with their child.
A burst of thunder woke her up from her bed in high school, only to find that nothing had happened yet.
She wanted to change her mind and be a good person, but unexpectedly discovered many secrets buried by time...