Kagai Jugyou: Shiritsu Hakurei Joshi Gakuen  

課外授業 -私立白麗女子学園-

The main character will become a teacher at a renowned girl's school due to an arranged marriage with the daughter of the headmaster, as decreed by their father. although initially hesitant, they agree to the engagement in order to achieve their objective. their goal is to educate and manipulate the girls who show interest, eventually transforming them into sex slaves, starting with their own fiancée.