A Misanthrope Teaches a Class for Demi-Humans Vol 1

From the Yen Press edition

...TO BECOME HUMAN? Rei Hitoma is a former teacher with a deep disdain for his fellow human beings. But after two years of unemployment, he’s ready for a change of pace. He takes a new job at a school in the mountains, hoping to live a slow, relaxing life surrounded by nature. But on his first day, he passes by a peculiar student...with animal ears?! Turns out, this is no ordinary school. It’s a place dedicated to helping demi-humans become full-fledged human beings!

Source: Yen Press