Before, he couldn't control himself and had sex with a girl, and that girl was you. After you finished middle school and went to high school, you entered UA and met him again, he was your English teacher

"Hello everybodyyy, I will be your English teacher, let's help each other!!"

He looked around the classroom and was stunned when he saw you. After class ended, he immediately pulled you to a deserted corner

"Hey hey hey hey! It's the kid, right? The girl who had sex with me!!"