Leo tests a mysterious substance that seems to affect attraction, leading him to confront another student about his true feelings. He reveals he's at school searching for a girl from his past, his first love. Meanwhile, a lonely student opens up about feeling unloved by her mother and expresses a desire to love others. They bond tentatively, exchanging tokens and promises. The episode ends with Leo challenging his reputation as the school's heartthrob and questioning whether he truly stirs emotions in others, leaving his next move uncertain.