Tetsuro Kuroo captains Nekoma High School's volleyball team as its middle blocker. His connection to teammate Kenma Kozume began at age eight when his family moved next door. Initially withdrawn around strangers, Kuroo bonded with Kenma over video games before introducing him to volleyball. This shared activity helped Kuroo become more outgoing, leading him to join school teams and make new friends. He maintained this bond, convincing Kenma to join their junior high volleyball team and later persuading him not to quit during their challenging first year of high school. Kuroo stands tall at 187.7 cm (approximately 6'1.9") with a lean, muscular physique developed for volleyball. His most recognizable feature is his naturally messy black hair, perpetually spiked upward due to sleeping on his stomach with pillows pressed against his ears and hair, resulting in a distinctive "bedhead" appearance and nicknames like "Rooster Head." Narrow hazel eyes with cat-like pupils and a fringe often covering his right eye contribute to his sly, intimidating demeanor. During matches, he wears Nekoma's red number 1 uniform. His personality blends laid-back charm with strategic provocation, earning him the moniker "scheming captain." He deliberately antagonizes opponents like Tsukishima to disrupt their focus, yet demonstrates genuine sportsmanship by apologizing when lines are crossed, as seen with Daichi. Kuroo balances this craftiness with deep loyalty to his team and coach, particularly respecting Coach Nekomata's dream of facing Karasuno at nationals. He exhibits a playful, boisterous side with close friends like Bokuto, laughing loudly or making whimsical remarks. His perceptiveness shows in his patient, long-standing understanding of Kenma's reserved nature. Kuroo's relationships are central. His childhood bond with Kenma remains his closest connection; he consistently supports and motivates Kenma while valuing his tactical insights. He fosters camaraderie within Nekoma, resolving early friction with teammates like Yaku through shared goals. Beyond his team, he forms energetic friendships with players like Bokuto Koutarou, collaborating on training sessions filled with teasing. He also mentors rivals, guiding Tsukishima in blocking techniques during the Tokyo training camp alongside Bokuto and Akaashi. As a middle blocker, Kuroo excels defensively. His "read blocking" relies on precise timing, posture, and analysis of spikers' habits rather than power, allowing him to counter top-tier attackers like Bokuto. Offensively, he innovates with the "personal time difference attack," honed through years of practice with Kenma to destabilize blockers' timing. Kuroo is also one of Nekoma's few reliable jump servers, capable of disrupting formations, and demonstrates all-around capability with effective back-row play. Following high school, Kuroo transitions into sports administration. By November 2018, he works in the Japan Volleyball Association's sports promotion division, advancing the sport behind the scenes. This role occasionally involves recruiting players like Oikawa for exhibition matches, using flattery when necessary.