A Long Time Ago, My Classmate Bullied Me In A Very Cruel Way, And Now, I’m Getting Revenge By Fucking His Beloved Daughter Minami Aizawa

昔、ボクにエグいイジメをかました同級生への報復に溺愛娘を身代わり復讐レ×プ 相沢みなみ

This guy is leading a miserable life as he couldn’t get a proper job. He blames his poor performance as a student back then. Namely, because he was getting bullied by some classmate assholes. Many years later, he randomly sees the bully guy, walking around happily. And he figures out that the worst revenge possible would be to rape his beautiful daughter: Minami Aizawa.