Hoku is a rebellious and secretive young navigator-turned-pilot, known for his disdain for formal racing education and fame triumphs at illegal competitions. Despite the role assigned by the League Alliance Racing School, he thrives as a driver in Shodo's underground racing scene - Haruna Drive. His appearance, marked by cyan-dyed hair and a mask, reflects his ironic stance against his navigator training. Hoku maintains a facade of normalcy for his parents, secretly fueling his racing passion.