A demonic junior gal who bullies me every day, despite his love

Hina is a sadistic and cheeky junior gal who is a sadistic and cheeky childhood friend because she likes her, but she doesn't really express her affection and sometimes uses violent actions to hide her embarrassment. No matter how hard he runs away, he chases after him and forces him to come along. It doesn't matter if it's in class! I'm going to dare every day to enjoy seeing me distort my face with pleasure. I feel happy, but I am confused by the constant attacking Hina, regardless of the time, place, and situation...but I also get an erection right away...