Ichiban Ushiro no Daimaou - MangaDex

This story of "love, magic, and battles" revolves around Akuto Sai, a boy who aims to become part of his country's highest order of magicians and contribute to society as one of its clergy. On the day he is admitted into the Constan Magical Academy, his aptitude test predicts the following: "Future Occupation: Demon King." Thus begins his severe school life in which he is resented by his studious female class head, desired by a girl with mysterious powers, and guarded by a beautiful female android.

Cat Translator (@translator_cat) / X

Headmaster (Ichiban Ushiro no Daimaou), VS Battles Wiki

Sarazanmai – 03 – Random Curiosity

Ichiban Ushiro No Dai Mao Demon King Daimao Guide Book Anime Art

Hataraku Maou Sama S2 – 01 – Random Curiosity

Isekai Saikyou no Daimaou, Tensei Shi Boukensha ni Naru - MangaDex

Are there any isekai where the MC isn't a simp? - Quora

DISC] Mushoku Tensei ~Isekai Ittara Honki Dasu~ - Ch 81 : r/manga

Hyakuren Haou Seiyaku Valkyria – 02 – Random Curiosity