Tendou Satoru

A male teacher who was transferred to the school when Tendo Motoya became acting principal.
Motoya's biological son.

He was spoiled growing up and grew up with a selfish personality.
With his parents' help, he managed to go on to higher education and even obtained a teaching license.

He's a lecherous man who, as parents, is what makes a man.
He has made advances on his students and caused trouble on several occasions, but has resolved the issues with his parents' help and money.