After Su Pingle died, he found that he still existed in this world with only partial memories left, and he realized that only a girl who had nothing to do with her could see her.
After contacting her, Su Pingle was very glad that this girl was not as innocent as she seemed on the outside. She had an ambition to show off herself. Ever since, Su decided to investigate the real cause of his death by 'using' her. . . . . .