Princess' Rebirth: I Want A Phone!

Anya Edevane was a demon. Whenever she isn't able to get something she'd beg for ages, threaten your family, then say she's gonna hurt herself. Well yeah that sounds more "spoiled" than "demon", but she always hurt those around her. Even the strongest man in the continent would be scared of her. She has the blessings of 3 different spirits, and healing abilities so the royal family treasured her. What happens if a demon like this gets reincarnated in the modern world...? Oh no.