Beatrice only has a few friends at her high school, including Nico di Angelo. They struggle through the bullies, classes, and challenges together. Even after almost a year of being his friend, she still doesn't know that much about him. Only last week did he tell her that he had a partner! Beatrice is curious about who this mystery person may be, but, unknown to both Beatrice and Nico, this person is about to show up at school!