Necromancer Survival

Sometime after Gates' appeared in this world, humanity was divided into two: [User] and [ordinary human beings]Lee-kyung was able to awaken into a user and choose a [Class]but, in momentary misjudgement, chose to be a [Necromancer], the worst of all classes.Lee-kyung, searching for the materials to evolve his skeletal servant, Lackey,' was barely able to participate in a high-level raid for [Tower of Command] Dungeon. In an accident, he falls down alone to uncover a hidden conspiracy. Injured and desperate to survive, Lee-kyung called out to anyoneand reached a vengeful spirit. "Please, I'll do anything.Please form a contract with me and save me!" -You'll do anything?.[Will you accept the oath' offered by Seo Dawon'?]-You'll do your best to help me achieve my revenge. And, I will do my best to save you wherever, whenever you are in danger. Is that acceptable?[Initiating a new contract with Seo Dawon']Junior Necromancer Choi Lee-kyung and Ranker Mage Seo Dawon's delightful revenge play!TW: Depictions of mental health