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

Reona is a sadistic and cheeky childhood friend who wants to care because she likes her, but she's not good at expressing her affection and sometimes goes to her with 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'm confused by how she always attacks me, regardless of the time, place, or situation...but I also get an erection right away...