Mahou Onna Gakuen no Baiten de Hataraku Ore wa, Isekai kara Shoukan sareta "Harem dorei" desu.

Ryūta Sakuma spent his entire adult life as an overworked salaryman, treated by his company as little more than expendable labor until he finally collapsed from exhaustion and died. Granted a second chance, he is reborn in another world and summoned to an academy dedicated solely to training young women in the magical arts. What makes this institution unusual is that Ryūta is its only male. The students have virtually no experience with physical intimacy, and their curriculum includes practical lessons on the dynamics between men and women. As a result, Ryūta is assigned to a highly unorthodox role: the academy’s so‑called “Harem Teacher.” Between running the campus store and navigating the innocent yet increasingly curious advances of the students around him, the former corporate slave discovers that his new career bears little resemblance to anything he knew back in Japan. This is an adult‑oriented isekai harem comedy about a worn‑out salaryman who lands a very peculiar second job at an all‑girls magical academy.