The Demon Girl Next Door

🇯🇵まちカドまぞく · Machikado Mazoku

MangaOngoing🇯🇵 First published in 2014ComedyMahou ShoujoSlice of Life

Izumo Itou story, art · Laura Heo art · Rai Enril art

Yoshida Yuko was living a perfectly normal (if poverty-stricken) life, but at the age of fifteen, she suddenly sprouts demon horns and a tail! Her mother explains that she's actually a demon named Shadow Mistress Yuko, once sealed away and cursed so that her family would remain poor for generations.

Synopsis via AniList