The day the world of rules descended, programmer Chen Xu was working overtime.
You must not make a sound at midnight. Shopping carts must be sorted by color. A mirror must not show a second you. Anyone who breaks a rule is erased on the spot.
Chen Xu discovers that he can see the source code behind the rules. He changes "death" to "escape" and "despair" to "hope." But each change makes him randomly forget something: what he ate yesterday, the face of his first love, his parents' names...
His best buddy Ma Chao pulls out a notebook. "I'll write down whatever you forget."
From then on, one of them uses cheats to rewrite the rules while the other lies back and shouts, "Nice!" Together, they clear instance after instance, collect fragments, and take on the villains, until Chen Xu discovers that he used to be an administrator of the world of rules, and the one hunting him is his former partner.
At the last moment, Chen Xu types a comment at the end of the code:
# For Brother Chao: Remember to treat me to a late-night snack
