Ten years after monsters invaded Earth, Jaemin Park, a struggling web novelist, faces writer’s block after 999 chapters. When a lightning strike merges his fictional world with reality, Jaemin is thrust into a deadly game. Armed with a system interface, he must rewrite his novel’s ending to save Earth from destruction. “I wrote this world… Now I have to fix it?” Jaemin mutters, realizing his characters—and their threats—are now real. With his story’s events unfolding, Jaemin must navigate a dangerous reality he once controlled—or risk losing everything.