If she forgets her past self.
Little does she know that in a world she doesn't know, there are people who remember what she has done and protect every ordinary person in countless parallel worlds.
But in the original world, she had forgotten everything.
Memories that have been erased, stories that have been tampered with.
Su Xia received a letter from the past, which arrived four years later, to her eighteen-year-old self.
Intention: Protecting you is my destiny