蛭川 敬三

Due to his lack of awareness as a teacher and poor reputation among parents, he moves from one school to another without staying in one.
Most of these schools are problematic, full of delinquents and plagued by a lack of teachers.

He is servile, cunning, and likes to be led by those in power, and for some reason he cannot stand up to Onijima, an alumnus of the school.

From the moment he took up his post, he repeatedly makes sexually harassing remarks to Urara, and looks at her as if slugs were crawling all over her body.