人外教室の人間嫌い教師 ヒトマ先生、私たちに人間を教えてくれますか......? (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Human Zero is a former teacher who has had a traumatic experience with human relationships. He changes his job to a school in the mountains rich in nature, and he thinks he can enjoy a relaxing life as a rehabilitation teacher, but to his surprise, it turns out to be a mysterious all-girls school where non-humans become humans!

(Translator: DeepL)