Shōkichi Ōka manages the skateboard shop DOPE SKETCH, handling repairs and supervising employees Reki Kyan and Langa Hasegawa. He stands at average height, with messy brown hair featuring longer front strands, olive-toned eyes, and prominent eyebrows. His work attire consists of a pink t-shirt layered under blue coveralls, paired with black fingerless gloves and red-and-white sneakers. Balancing professionalism with dry humor, he crafts theatrical lies for entertainment—claiming fabricated debts to dodge deliveries while covertly attending personal commitments like dates. He maintains strict workplace safety protocols, forbidding Reki from labor while injured and redistributing tasks to Langa. His protective instincts emerge when tracking Reki to an alley post-confrontation, challenging the teen’s self-doubt and urging him to reignite his skateboarding passion. Ōka strategically nudges pivotal events, such as directing Langa to an underground race called "S" through a delivery assignment and hiring him on Reki’s referral. He mentors during critical junctures, supplying Langa with protective gear ahead of a high-stakes race against Adam and later validating his resolve to succeed. His guidance reflects an awareness of personal struggles, drawing parallels between Reki’s insecurities and his own unspoken past hardships. The shop’s ambiance is shaped by Sketchy, a fennec fox mascot devoted solely to Ōka, fostering a quirky familial dynamic. His surname "Ōka" (岡) translates to "ridge" or "hill," while "Shōkichi" (正吉) blends "righteous" and "fortune." Though his background remains sparingly detailed, prior challenges position him as an anchor for younger characters navigating their growth.