The Sole King's Prophecy

An ordinary office worker who once obsessively read a dark fantasy webnovel awakens in its apocalyptic world, where monsters, angels, and gods descend upon Earth and five destined “protagonists” — a Transmigrator, Reincarnator, Isekai hero, Regressor, and Rebirth-er — compete to become the Sole King. Unlike them, he has no powers, no divine contract, and no second chances — only his memory of a story that was never finished and a forbidden doctrine known as the 48 Ways of Becoming a King. As prophecy drives the world toward ruin, the unscripted sixth protagonist must decide whether to survive in the shadows… or rewrite fate itself.