Evolve from Skeleton Soldier to Undead Devil

On the first day of time travel, I was thrown into the dark forest like garbage, left to fend for myself. Three years after leveling up, I occupied the Dark Mountains, and people called me the Dark God of War. Ten years after leveling up, I conquered the Holy Continent, and people called me Skeleton Pluto. Thirty years after leveling up, I dominated hell and commanded heaven, and people respected me as the Lord of the Netherworld. One hundred years after leveling up, I raised my eyes and glanced around, but the gods from many planes did not dare to look at me. At this moment I understood that I could finally do without liver!