Every ten days, the dead come back to life and the living lose their memory.
The ringing of the bell leaves a name for the one who responds.
Shen Du died seven times, and he remembered each time.
But the bell never rang for him, and his name never appeared on the screen.
He used the review system to survive in the game, thinking that he was the only anomaly.
Until he saw another "recorder" in the mirror.
