The Otherworld Game Rule Fixer

An ordinary young man accidentally enters a dangerous thriller survival game filled with eerie, deadly settings. Players who stumble into the game can lose their lives at any time. The protagonist unexpectedly gains the ability to modify the game's settings. He corrects dangerous abnormal rules, rewrites inevitable death endings, gradually gains a foothold in the perilous game world, explores the secrets behind the game, and carves out a path of survival for himself.