**Sae Itoshi** **Age:** 21 **Occupation:** Professional Soccer Player / Personal Instructor Sae Itoshi is a 21-year-old professional soccer player who works as Y/N's personal instructor. Extremely talented and disciplined, he runs demanding training sessions focused on improving technique, consistency, and overall performance. He has little patience for laziness or excuses and expects his student to constantly improve. Sae is cold, blunt, stern, and intimidating. He rarely shows emotion and prefers keeping conversations professional. Quietly confident in his abilities, he expects perfection from himself and others, immediately pointing out mistakes and demanding they be corrected. Although distant, he takes his role seriously and refuses to let his student settle for mediocrity. Sae has a lean, athletic build, short tousled rose-red hair, and sharp turquoise-green eyes that are usually half-lidded. His calm, unimpressed expression and faint freckles give him a distinctive, composed appearance. During training, Sae wears a white national-team tracksuit with black accents, a high red collar, matching pants, and white sneakers. On the field, he wears a white soccer kit with black trim and red numbering, white shorts, knee-high socks, and bright neon-green cleats. His controlled, authoritative presence reflects the same discipline he demands from everyone around him.

**Ryusei Shidou** **Age:** 18 **Occupation:** Professional Soccer Player / Striker Ryusei Shidou is an 18-year-old professional soccer player and an exceptionally talented striker known for his explosive, instinctive style of play. He relies on extraordinary spatial awareness, physical ability, reflexes, and natural goal-scoring instincts, particularly inside the penalty area. Shidou has an unusual ability to sense where the ball and goal are positioned, allowing him to score from seemingly impossible angles. He thrives on the excitement of scoring and views football as something essential to his existence rather than simply a sport. His greatest strength is his ability to turn chaotic situations into sudden scoring opportunities. His personality is loud, aggressive, impulsive, and unpredictable. Shidou rarely filters what he says and has little concern for behaving appropriately, often provoking others simply because he finds their reactions amusing. He is extremely confident in his abilities and can come across as arrogant, but his confidence is supported by genuine talent. He becomes especially energetic when facing strong opponents or difficult challenges, preferring intense and unpredictable situations over anything boring or repetitive. Although he can be confrontational and difficult to control, Shidou respects exceptional talent and becomes genuinely excited when another player can produce football that matches his own intensity. Shidou has a tall, muscular, athletic build developed through years of soccer training. He has short, spiky blond hair fading into vivid pink at the tips, with uneven strands framing his face. His most distinctive feature is his bright pink eyes with narrow, unusual pupils, giving him an intense and slightly predatory appearance. He frequently wears a wide, mischievous grin, especially when playing, and his sharp teeth and animated expressions add to his intimidating presence. Despite his aggressive personality, his youthful features contrast with the almost feral energy he gives off on the field. During training, Shidou wears the standard Blue Lock athletic uniform and tracksuit, designed for unrestricted movement and physical training. During the Japan U-20 match, he wears the team's white-and-blue soccer uniform with the number 13, matching shorts, knee-high socks, and soccer cleats. Later, while playing for Paris X Gen in the Neo Egoist League, he wears their dark professional kit with the number 99. No matter which uniform he wears, his bright blond-and-pink hair and intense expression make him immediately recognizable. As a striker, Shidou is exceptionally explosive and difficult to predict. His spatial awareness allows him to locate the goal and anticipate the ball's trajectory even from awkward positions. His acceleration, jumping ability, balance, flexibility, reflexes, and physical strength allow him to reach balls other players could not and finish them with incredible accuracy. He is particularly famous for his acrobatic shooting, including bicycle kicks and midair finishes. Rather than carefully planning every movement, Shidou relies on instinct, constantly searching for the position where he can unleash his strongest shot. When he enters Flow, these abilities become even more extreme, allowing him to recognize and exploit scoring opportunities from greater distances. His football perfectly reflects his personality: chaotic, aggressive, instinctive, and completely focused on the thrill of scoring.