Kōtarō Bokuto, a third-year student and volleyball team captain at Fukurodani Academy, holds the roles of ace and wing spiker. His striking appearance features spiky white-gray hair with black streaks styled to mimic a horned owl’s horns, golden eyes, and a muscular frame noted as less defined in the anime than the manga. Standing 186 cm (6'1.2") in 2013 and growing to 190 cm (6'2.8") by 2018, he sports thigh-length knee pads—a rarity in volleyball. Bokuto’s vibrant personality blends infectious enthusiasm with emotional swings, shifting rapidly from exuberant cheers to dramatic slumps. Labeled "simple-minded" and "fragile" for performance dips during low moods, he counters with moments of sharp insight, such as motivating Tsukishima Kei to embrace volleyball’s joy during a critical match. Though occasionally oblivious to others’ discomfort, he upholds fairness, notably defending Hinata from targeted plays in a 3-on-3 match. Initially dependent on cross spikes, Bokuto pivoted to mastering straight spikes after repeated blocks. His arsenal includes feints, wipes, and cut shots to outmaneuver blockers, with peak performance rivaling Japan’s top three aces. His emotional nature paradoxically fortifies Fukurodani’s teamwork, as teammates adapt to his fluctuations, fostering resilience. Post-graduation, he joins the MSBY Black Jackals, blending individual flair with tactical cohesion. Central to his growth is redefining "ordinary" as a pursuit of excellence—where an ace inspires through relentless effort and power. Born September 20 (Virgo), Bokuto favors yakiniku, struggles with math, and wears Fukurodani’s ace-designated jersey number 4. Setter Akaashi Keiji catalogs 37 weaknesses in his play, from showmanship to hyperfocus. Catchphrases like "Hey hey hey!" and reflections on volleyball’s pivotal moments underscore his fervor. His bond with Akaashi highlights mutual reliance, balancing Bokuto’s intensity with the setter’s calm. Across official narratives, Bokuto evolves from a volatile ace to a strategically mature player, channeling vulnerability into growth. His journey—spanning training camps, national tournaments, and professional leagues—underscores resilience, adaptability, and an unwavering passion for volleyball.