Mattia was one of the homeless children who lived with Gaspard. He is the leader of the homeless children. Mattia and Ricardo used to steal, but with the help of Remi, they gave up stealing and changed their job to shoe shining. Remi and Mattia became very close friends, later they developed a romantic relationship. In the last episode, Mattia and the other children who were once abused by Gaspard were adopted by Mrs. Milligan, the wealthy English mother of Remi. Mattia also promised that he will study hard and become a professional violinist (Mattia is good at playing the violin) so that he can be a suitable man for Remi and stay with her forever.