"I" died and lost all my memory. "I" was told: If I don't know the cause of my death, I won't be able to go to heaven as I wish.
You have six days and six hours to find out the cause of your death!
"The spring sun shines on the solitary grave, and the deceased among the strangers are indistinguishable from each other in the dim light."
A youth novel.
Intention: suspense, growth.