ok hang on, i thought the mangaka was just inspired by the demon butler idea and writing their own story, but this is just a black butler rip off but a generic fantasy setting and a female master 😐
Bargain bin sebastian aside, the girl is acting just like ciel and saying super edgy stuff like it's a gothic fantasy when its not....
I guess the mangaka got sick of waiting for new kuroshitsuji chapters and decided to make her own LOL