Wuxian Juchang

Ordinary high school student Lin Ran saved his classmate Li Li, who was supposed to die, during an act of heroism. This caused the script world to fall into chaos. To save Li Li and rewrite his own life script, Lin Ran embarked on a journey with Gu Bai, a special commissioner from the script world, to fix the runaway scripts.

(Source: Bilibili, translated)