Diaper mages are a rare and unique type of magic user with the ability to transform other living beings into diapers, gaining their strength and abilities upon wearing them. Those transformed are unable to move and rarely capable of speech, but are still alive and conscious. They are usually either kept or sold, and the effects can either be temporary or permanent. Diaper mages themselves often work as mercenaries or bounty hunters, transforming their targets into diapers for their own use or for others to wear and use as they see fit.