In the near future where memories can be accurately deleted, Ling Zhou, the top "memory cleaner", ironically forgot his entire past. He is like an island floating in a sea of oblivion, with only the professional skills he needs to survive. When a mysterious woman named Su Wan comes to the door with a painful memory that needs to be erased, Ling Zhou accidentally touches the fragments of his own dusty memory while "cleaning up" for her. The past that she desperately wanted to forget seemed to be the answer he was searching for. Every deletion is like a dangerous approach, dragging the two into a fatal whirlpool of love and betrayal that has been set for a long time.
