Survival Trial: I'm the Only One Who Knows the Bug Spots

This is a trial space made up of Left 4 Dead maps. Everyone in this world is working hard to conquer each map instance and grow stronger.

Ye Zidi, who transmigrated here, is thrilled to discover that all the instances everyone struggles to clear are Left 4 Dead maps he knew inside and out and had already beaten solo in his previous life!

And in this world, Ye Zidi is the only one who knows the maps' bug spots and hidden tricks.

No Mercy: A sudden change in the number of special infected catches the other three rookies off guard. Only the protagonist, Ye Zidi, thinks, "Is that all?" They say you always lose health on the hospital level? Under Ye Zidi's lead, the four of them don't lose a single point of health.

Crash Course: A traitor ignores orders, and three members of the team die at the hands of a Tank. With no other choice, Ye Zidi decides to clear the level alone.

I! Ye Zidi am the most underhanded outsider of them all!

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.