Overlord of the Other World: the Underworld Has Become My Exclusive System

Xia Chuan's soul traveled to the underworld after donating his organs and died. He used the broken skeleton to create magic, fight lich, and destroy the corpse king, and unified the underworld. He also successfully crossed the border and entered the demonic continent of the last generation. Using the underworld as a system, he could pretend to be a pig and eat a tiger, and he could also explode soldiers with blood. He had an army of hundreds of millions of undead in the underworld, and he became a god step by step! Who can compete with him? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.