The Demon Girl Next Door is a light comedy anime. Yuko (Konomi Kohara) is a 15-year old high schooler who one day wakes up with horns and a tail. Mom Seiko (Sayaka Ohara) reveals that their ancestors were demons but their family has been cursed to be poor. It's up to Yuko to defeat a Magical Girl, steal her blood, and break the seals binding their first ancestor Lilith (Minami Takahashi) currently trapped in a small statue that Seiko uses as a doorstop and paperweight.

Yuko immediately runs into Momo (Akari Kitō), a somber Magical Girl attending the same high school. In subsequent episodes Yuko challenges Momo to various combats but Yuko so frail, clumsy, and scaredy-cat that Momo never takes her seriously and instead offers to train Yuko to be a stronger demon. And such is the start of a friendship...

I like the first season more because it concentrates on Yuko and Momo more. Cartoon style is not great for something made in 2019. Three years later season two comes out and it's a lot better animation but also introduces more characters. Season two kind of meanders along and even though there is an overall goal there are time out episodes and the season seems less focused on the story.

Overall though it's pretty entertaining.