Hito wo Yosetsukenai Buaisou na Joshi ni Sekkyou shitara, Mechakucha Natsukareta (Associated Names)

This guy made my otherwise ordinary days a little more fun! One day, Naoya Ookusu, the class president, gave a lecture to one of his classmates, Risa Enami about her lackluster attitude. But from that day on, Enami has been trying to go home with him for some reason. Why on earth?