Waking in a dungeon teeming with undead, a young girl named Enya finds herself stranded and without memories. She soon meets Pell, a rude, foul-mouthed skeleton merchant desperate to escape. With monsters roaming the halls and the dungeon soon to collapse around them, she'll have to fight to survive, while also learning how to read. In the dungeon, death, decay, and deception are all but constants, and her very survival might just hinge on the flip of a coin.