Immortal Devourer: Rise of the Demon Tower

Underground fighter Liu Tieyi was destined to die in the blood-soaked pits—until a mysterious demon tower granted him an unkillable body. Now wielding absolute immortality and commanding legions from a boundless demon realm, he'll devour the apocalyptic world itself. When civilization crumbles and the old order burns, only the strongest will transcend their limits and soar like dragons above the ruins!