The Unwanted Undead Adventurer

Meet our protagonist, a forever copper-rank adventurer from the frontier town of Lent. Unfortunately, his luck takes a turn for the worse when he encounters a formidable monster in the labyrinth, leading to his defeat and transformation into a skeleton. Unable to enter town in his current state, he embarks on a quest to evolve and regain his muscular body. Join him as he battles monsters in the labyrinth, determined to achieve his goal of physical transformation!