Du Yuxing and Du Hengzhi, a couple who had just broken up, switched identities after an accident.
She unlocked a new experience of boring life and met the mysterious man Lu Ji.
Since meeting Lu Ji, her life has become crisis-ridden, and she gradually feels that he must have interacted with her before. Du Yuxing's memory is confused, and she begins to discover clues of the exchange fallacy.
It's like a joke made by fate, how should the gears of fate turn?
Intention: Cherish