For your smile, I am willing to give everything!
"I was killed!" In one sentence, Knowles, a high school student who did not believe in supernatural phenomena, was willing to give up his belief and help a beautiful girl who claimed to be a "ghost" - Yu.
Since Yu had no memory of his life and was baseless, Knowles launched a series of investigations based on his qualifications. During the investigation, Knowles discovered that this was not just a murder. Under the pressure of time urgency, Knowles never expected that "Yu" turned out to be...
In the end... Who is the murderer? Who is Yu? Can Knowles explain all these questions?
