Diego is 13 years old and is a good boy, with an apparently full life: top marks at school, gaming evenings with his best friend Fabio, oboe lessons. And then there's Erika, the most beautiful in school. Diego has been in love with her practically forever, but he has never had the courage to come forward. Everything changes with the arrival of a new classmate, Leo, in class: it is the beginning of a new life for Diego.