Don't Be Cruel (2-In-1 Edition) Vol. 1-2 (manga)

Playboy Maya catches studious Nemugasa cheating on a test, and to ensure his silence Maya blackmails Nemugasa into doing whatever he wants. Twice a week Nemugasa must go to Maya's room for some steamy action, but as dense and oblivious as Nemugasa is, he fails to notice Maya's true feelings for him. With college entrance exams around the corner, Nemugasa must focus on his studies, but Maya won't stop distracting him, causing him to finally snap! Can a relationship built on harassment ever be more?