The Unwanted Undead Adventurer - S01

Rentt Faina is a seasoned but unsuccessful adventurer who meets his end in a labyrinth when a dragon kills him in its lair. To his surprise, he awakens as a skeleton-the weakest type of undead. As he battles other monsters in the dungeon, he learns that defeating them earns him experience, allowing him to evolve into stronger forms of undead, including those with flesh. This discovery gives him a new purpose: to keep advancing until he becomes a vampire, the highest undead form that closely resembles a human. Forced to conceal his identity and monstrous nature behind a mask he can't remove, Rentt finds refuge with Lorraine Vivier, a former elite adventurer turned researcher. Taking her surname, he starts fresh as a novice adventurer while secretly working toward his lifelong goal of reaching mithril-class. But he must stay vigilant-if the adventurers’ guild discovers his true nature, they’ll see him as a monster to be destroyed.