Omniscient Reader: The Prophecy

Kim Dokja, an ordinary man in his 20s, is the only reader of an obscure web novel titled "Three Ways to Survive the Apocalypse". After having read the last chapter, the novel suddenly becomes reality, and its omnipotent hero appears. As the only person who knows how to survive in this world, Dokja and his companions strive to save the world by writing his own, new ending.