
Its set in a world with demons and humans, the mc is a human and the ml is a demon. The demons look completely human, except they have horns on there head. The bigger the horn the more alpha the demon. When the ml gets aroused his horns grow out.
dis
Tabetemo Oishiku Arimasen
https://www.mangago.zone/read-manga/tabetemo_oishiku_arimasen/
Back again for another re-read