Apocalypse King: Harem Contract System

When gray mist blankets the world and monsters overrun civilization, humanity awakens supernatural powers to survive. Zhang Xu discovers his unique "King's Ability"—a system that grants him devastating attribute boosts and legendary artifacts by forming contracts with powerful women. From the Eyes of Heaven to mythical treasures like the Ruyi Jingu Bang, his arsenal grows with every bond. In this brutal new world, survival means power, and power means never fighting alone.