A school-wide coma occurs, and everyone wakes up with collars around their necks.
The cat-faced host stood on the podium: "Welcome to the graduation exam. Only the one who survives to the end can graduate."
Chen Xuan discovered that the ability he had awakened was [time backtracking] - every time he died, he could go back to the past with his memories.
Fist-guessing killings, canteen massacres, supermarket desperate situations, camp games...
Others only have one life, but he can come back countless times.
When everyone is afraid of death, only he knows: Death is just a way to collect intelligence.
"Since you can't die, then try all the endings."
But what he didn't know was that at the same time -
This city and this world are all experiencing their own "games".
And they are just one of them.
(PS: At the beginning, the protagonist's dream is a reference to the Delta game. If you don't understand it, you can skip it directly without affecting the plot.)