I became the ultimate working person in a horror game.

(No romantic pairing, female lead)
Su Yun unexpectedly boarded the 414 bus leading to a horror game, thus beginning his life of working within the game's instances—
Instance 1: Three days of work, I went from apprentice to puppet master;
Copy 2: A Brief Discussion on the Path of a Textile Worker to Factory Manager;
Instance 3: I'm a national treasure at the zoo, earning points like crazy;
While other players struggled to survive in the high-level dungeon, Su Yun thrived.
Player: Please carry me, pro!
Dungeon boss: Get out! All of you, get out!

Novel keywords: I Became the Strongest Working Class in a Horror Game (no pop-ups), I Became the Strongest Working Class in a Horror Game (full TXT download), I Became the Strongest Working Class in a Horror Game (latest chapters available to read).