Summary
Speed-o'-Sound Sonic is a twenty-five-year-old Human from Z-City who operates as a villain and former bodyguard for Zeniru. He possesses superhuman speed and agility, utilizing ninja equipment including a ninjato, kunai, and ninja stars. Physically, he is a thin, slightly effeminate man with black medium-length hair styled in a topknot and distinctive purple marks under his eyes. Although he wears a tight black outfit reinforced with metal plating on his shins, forearms, shoulders, and chest, along with a long purple scarf, he is also seen in black street clothes. Despite his slender frame, he is extremely powerful. Sonic views Saitama as his eternal rival and exhibits a child-like smile when facing strong opponents, a habit he acknowledges while attacking Saitama on their first meeting without allowing for explanation. After being defeated by Saitama during his tenure as Zeniru's bodyguard, Sonic dedicated himself to finding a way to defeat him.
