An ancient being imprisoned in the pit below is summoned by a novice necromancer in a twist of mad fate, which sets millennia old grudges in motion. Put in the body of an undead, and summoned to serve the undead legion and their dark lord's mad plans to unalive the living, the freedom he sought seems to be a crushed hope. And yet, for he who did what no one ever could, and never will, as the weakest of the strong, nothing is impossible.

Disclaimer: I warn you, this story is not be for the faintest of hearts – (Progression, litrpg, non-human lead)