An entity that has ascended through infinite universes, past gods, death, and time, was never meant to stop climbing. Then it falls, without noticing, into the body of Seth Corwin, an F-rank adventurer who just died in a dungeon. His power is still there. His body can only carry mana, so he must learn to grind himself down to human size, one drop at a time, while guild Assessors, rivals, and cosmic horrors begin to notice that an F-rank nobody keeps doing impossible things. Dungeons are not what humanity thinks they are. Mana is not what it seems. And the dead man’s debts, friends, and enemies came with the body, whether the Ascendant wanted them or not. If nothing can hurt you, can anything still matter? Dungeons. Cosmic horror. Mystery. Dark comedy.