Stargirl is a quirky, energetic girl who's different from her peers, and the other students make up absurd rumors about her. Despite this, Stargirl doesn't change who she is and continues to be happy and cheerful.
Kevin, Leo's friend, who hosts an in-school TV show called Hot Seat with Leo, wants to interview Stargirl so he can expose her antics and unusual behaviors in front of the entire school to make their show popular. However, after watching Stargirl for some time, Leo grew to like Stargirl and didn't want to make fun of her on Hot Seat, so he refused when Kevin told him to ask Stargirl to be on Hot Seat. Kevin doesn't understand why Leo isn't listening to him, and they both get into fights.
Leo grows to like Stargirl, and they become good friends. But then Leo finds out that people at school are beginning to ignore him because of his friendship with Stargirl, and he becomes concerned about what other people think about him. As a result, Leo is pensive on whether or not to continue to hang out with Stargirl.