He serves as the loud, fiercely loyal second-in-command of the Varia, the elite independent assassination squad of the Vongola Famiglia. Known for his title as the Second Sword Emperor, Squalo is a master swordsman who fights using an artificial arm embedded with a mechanical blade. Signature Catchphrase: He has an incredibly loud, hot-blooded personality and is iconic for constantly shouting "VOOOI!" (the Italian plural form of "you") to express anger, excitement, or frustration.Long Silver Hair: He keeps his striking white-silver hair long as a blood oath of dedication to his boss, Xanxus. He swore never to cut it until Xanxus takes his place as the 10th Vongola boss.The Artificial Arm: After losing his left hand to better understand the combat style of the First Sword Emperor, Tyr, he replaced it with a mechanized prosthetic sword that can flip backward and holds hidden explosives.