Sadatoki Sugimoto, a second-year Sohoku High student and bicycle racing club member, balances his towering physique—short hair, thick brows, and surprising strength—with a boisterous yet kind-hearted demeanor. As the younger brother of seasoned cyclist Terufumi, his raw power enables feats like shattering locked doors or hoisting two bikes effortlessly. Though his exuberance sometimes overrides social awareness, evident in misplaced phrases like greeting peers with “Thank you for the food,” his genuine respect and unwavering enthusiasm gradually win teammates’ trust. On the bike, Sadatoki instinctively mirrors techniques of admired riders, particularly Terufumi, though limited stamina curtails his race longevity. A grueling 820-kilometer training camp achievement—surpassing his brother’s first-year record—hints at improving endurance. His loyalty shines during the First-Year Welcome Race, aiding Terufumi’s bid for an Inter-High spot, while strategic advice from seniors, like mimicking a climber’s form, sharpens his adaptability. Prone to food-themed expressions and rice ball cravings, Sadatoki’s name—meaning “punctual”—playfully contrasts his unpredictable quirks. While his growth unfolds quietly in later team dynamics, his journey underscores camaraderie and the impact of mentorship, anchoring him as a spirited testament to incremental progress within Sohoku’s racing legacy.