A Misanthrope Teaches a Class for Demi-Humans

Rei Hitoma took a teaching job at a secluded school in the mountains to escape human relationships, but he found himself in an unusual situation. His students are demi-humans, including mermaids and werewolves, who are trying to learn what it means to be human. Rei is tasked with explaining human behavior and social norms to them, which forces him to confront the contradictions in his own views on humanity. His students' questions and aspirations gradually challenge his disillusionment with human relationships.