Rentt Faina has spent ten years stuck as a Bronze-class adventurer when, deep in the Labyrinth of the Moon's Reflection, he wanders down an undiscovered path and is killed and devoured by a legendary dragon. He wakes again as a skeleton, his old sword and gear still on him but his body monstrous. Clinging to his dream of reaching Mithril class, Rentt sets out to climb the ranks of the undead and reclaim a human form, all while hiding what he is in the town of Maalt.