The Great Jahy, the Dark Realm’s second-in-command, cuts a frightening figure, feared and revered by all. But when a run-in with a magical girl results in the destruction of the precious mana crystal, the Dark Realm falls, transporting the newly tiny and powerless Jahy to the human world! Unfortunately, plotting the revival of the Dark Realm from a cramped, crumbling one-room apartment is no easy feat when you have rent to pay and a job to keep!Once respected as the Demon Realm’s second greatest authority, the Demon King’s aide, Jahy, ruled her subjects with fear. But when a magical girl attacks and destroys a mystic gem containing massive power, the Demon Realm is destroyed. Although she survives, Jahy has lost almost all of her powers and finds herself stranded in the human world with a childlike appearance. In order to gather more mystic gems so that she can permanently restore both her original form and the Demon Realm, Jahy will have to adjust to her new life and deal with everyday problems that she has never experienced before. From working to pay for living expenses to arguing with her landlord whenever her rent is late, the great Jahy will not be discouraged!