Hayato Gokudera is a half-Italian and half-Japanese teenage boy of the average height. He is chosen as the 10th Storm Guardian of the Vongola Famiglia. He also aspires to become Vongola Decimo's right-hand man. Hayato is hot-tempered and tends to be irritable towards anyone who isn't Tsuna, Reborn, and Nana Sawada, with the biggest nuisance towards him are his own fellow guardians. He cultivates the image of a "bad boy" by smoking heavily, having a hostile attitude, dressing like a delinquent, and even attempting to harm others if not for the intrusions Tsuna and Takeshi, who restrain him. Despite his image as a school delinquent, Hayato is shown to be quite intelligent and finds many of the tests and schoolwork to be easy, unlike his boss.