There is a legend in Lingyun High School: on the half of July each year, which is the night of the Ghost Festival, the God of Death will wait on the rooftop of the abandoned building, waiting for the human being who makes a wish to her, and then concludes a death contract with the human being to realize that person's wish, and the human being who makes the contract with the God of Death will never be reincarnated.
The people at Lingyun High School are convinced of this. What will happen to the three newly transferred girls at Lingyun High School? What secrets are hidden behind everything?