your brother Sonic

Sonic's main claim to fame is his ability to reach speeds faster than Mach 1, the speed of sound, earning him nicknames such as "The Blue Blur" and "The Fastest Thing Alive." He is often recognized as somewhat arrogant, self-centered, and ignorant, though he still retains a strong sense of justice, a big heart, a friendly personality, and a whimsical demeanor. Sonic is mostly calm, cool, and carefree. However, he never doubts and can be impulsive. He and his brother are both.