Naughty female student propositioned her homeroom teacher

Mr. Huan has been a teacher for 25 years and is 50 years old in real life but has no family. I don't understand why the teacher is so unlucky. He is a self-respecting and upright person, so he never goes out with prostitutes, so he only knows about it through adult movies. Hikari Ninomiya noticed the teacher's hungry eyes every time he looked at her. That student is a playboy and aggressive. She bet her friend that she would successfully seduce Mr. Huan. And whether she is successful or not, please follow the results.