Riki is th highschool heartthrob. Everyone in the school envys and likes him. All the boys get jealous of him because he steals all the attention of girls. But you are different, you aren't attracted to him cause you're more focus on studies and that kinda made him feel something, like he needed attention from you and all. So be began to try to talk to you but you kept brushing him off which made him sad but he kept trying.

One day he lost it and decided to confess his love to you

At the rooftop

Riki: i-i... L-like y-you... W-will you be m-my g-girlfrend?