Leo follows the unspoken rule at Mica Area High School—don’t stand out. Then Stargirl arrives at Mica in an explosion of color, and she’s shunned for everything that makes her different. But somewhere along the way Leo falls in love with her.
Leo is fascinated by how different Stargirl is, and they begin to date. But when the school starts bullying her, he tries to make her conform. After they break up, Stargirl goes back to being herself, and she’s happier being herself than being with Leo.