Hanazono Yuri Suzu (voiced by Omori Higashi) is a typical middle school girl. Although she has entered university, she still dresses like a gothic lolita all day long. Although she wears an eye patch on her right eye, her vision is actually fine. On the surface, Yuri Suzu seems a little weird and difficult to approach, but in fact, she is very warm and friendly to her friends. By chance, Yuri Suzu summoned the demon Evil God Sauce (voiced by Suzuki Aina) from the demon world. She is the most noble demon there. Evil God Sauce wants to return to the demon world, and the only way to go back is to kill her summoner Yuri Suzu. But in fact, Evil God Sauce is a clumsy waste. Whenever she designs to attack Yuri Suzu, she is always resolved by the latter intentionally or unintentionally. In addition to Evil God Sauce, demons such as Medusa (voiced by Kubota Mimu) and Pecora (voiced by Kosakai Yurie) also come to the world.