Shokichi Oka, full name Shokichi Oka (岡 正吉), manages the DOPE SKETCH skate shop, overseeing skateboard repairs and maintenance while supervising part-time employees Reki Kyan and Langa Hasegawa. He possesses an average height, messy brown hair longer in front than on the sides and back, olive-colored eyes, and thicker-than-average eyebrows. His work attire consistently features a pink t-shirt under blue coveralls, black fingerless gloves, and red-and-white sneakers. His personality blends genuine concern with playful humor. Oka demonstrates care for Reki and Langa's wellbeing, such as forbidding Reki from working after injuries sustained in a race against Shadow. He later offers Langa protective gear for racing Adam, though Langa declines. Conversely, he fabricates dramatic stories for amusement, like claiming DOPE SKETCH faces crushing debt to avoid deliveries – a deception likely meant to conceal a personal date. Key interactions define his role. He discovers Reki injured in an alleyway following an altercation, offering counsel by relating to Reki's feelings of skateboarding inadequacy. Oka identifies Reki's self-loathing as the core of his emotional pain, aiding his recuperation. He facilitates Langa's introduction to "S" by assigning him a delivery to the underground race location and later hires Langa at Reki's recommendation. Oka shares a notably close relationship with the shop's fennec fox mascot, Sketchy, who remains friendly exclusively toward him, often resting in his arms during "S" events while biting others like Reki. His name incorporates the kanji for "ridge/hill" (岡), "right/proper" (正), and "lucky/good fortune" (吉). Within the series, he is exclusively referred to by his surname "Oka."