Jahy prided herself on being No. 2 in the Demon Realm, second only to the Demon King. She was supposed to be in her prime, being feared by demons, spoiled rotten, and living a lavish life, but after getting hit by a powerful attack from a magical girl, she was blown away and woke up in the human world. The source of her powers, the mystic gem, has shattered, and without it her powers and beauty have dwindled. Her appearance has been reduced to that of a cute little girl. Forced to live in poverty, she gets a part-time job at an izakaya and rents out an 8x10 one-room apartment with no shower or bath. Never wanting to deal with paying rent or worrying about other people’s feelings again, Jahy decides that she’s going to restore the Demon Realm!