In modern cities, monsters invade from rifts in different dimensions, and humans awaken to their supernatural powers to fight against them. The Hunter Association establishes a hierarchy (E-SSS level) to organize hunters to defend the city. The protagonist Lin Chen lives in the third safe zone threatened by monsters, where E-class hunters are regarded as cannon fodder. As the tide of monsters intensifies, the legendary "system" reappears in the world, triggering a struggle among various forces.
