Kim Dok-ja, a typical young man in his twenties, is the sole reader of a little-known web novel called “Three Ways to Survive the Apocalypse.” Upon finishing the final chapter, the story unexpectedly comes to life, and its all-powerful protagonist, Yu Jung-hyeok, materializes in front of Kim. Armed with unique knowledge of how to endure in this transformed reality, Kim, along with his allies, endeavors to rescue the world by crafting a new conclusion to the tale.