The Great Jahy Will Not Be Defeated! anime
Jahy, once the Demon Realm’s second most powerful authority, was feared by her subjects. The Demon Realm is destroyed when a magical girl destroys a mystic jewel containing enormous power.
Jahy survives but has almost lost all her powers. She is now stranded in this world, with a childlike appearance. Jahy will need to adapt to her new life and face everyday challenges that she has never faced before in order to find more mystic gems to permanently restore her original form and the Demon Realm. Jahy is not discouraged by the fact that she will have to work to pay her living expenses and argue with her landlord when her rent is late.