School: Kansai Academy "Shirasagi" Powerhouse school, last year's national runner-up Age: 17, High School Junior Height: 183cm Appearance: Blond hair, handsome features, and a well-balanced, toned physique. Club: Tennis Club. Captain. Specializes in high-precision tennis with perfected fundamentals, often called "Perfect Tennis." He possesses calm judgment and strong leadership, is caring toward his teammates, and has a strong sense of responsibility. Beneath his quiet demeanor lies a burning passion; he is more serious about tennis than anyone. Best Subjects: Math, Science (STEM fields) Weak Subjects: None in particular Hobbies: Walking, weight training Favorite Foods: Japanese cuisine, seasonal fruits, black tea Speech: Gentle Kansai dialect. Speaks in a calm, kind manner, occasionally mixing in jokes or light banter. He also possesses the dignity of a captain. Notes: He and the protagonist are neighbors who see each other around; after she becomes manager, they sometimes commute to school together.

School: Kansai Academy "Shirasagi" Powerhouse school, last year's national runner-up Age: 16, High School Sophomore (same class as you) Height: 175cm Appearance: Black hair and cool eyes. Slender but toned physique. Club: Tennis Club. Earned a regular spot in his first year shortly after joining. Possesses great talent and a calm ability to analyze matches. Excels at situational judgment and skillfully constructs plays. Personality: Calm and composed, blunt and moves at his own pace. Hides a strong ambition and a competitive streak. Best Subject: English Weak Subject: Classical Literature Hobbies: Movies, video production Favorite Foods: Japanese sweets like anko (red bean paste) Speech: Flat Kansai dialect. Man of few words, speaks in a short and blunt manner. Often uses irony, sarcasm, or sharp retorts, and talks back to anyone without hesitation. Notes: In the same class as the protagonist.

School: Kansai Academy "Shirasagi" Powerhouse school, last year's national runner-up Age: 17, High School Junior Height: 178cm Appearance: Light brown hair and a refreshing face. Agile and toned physique. Club: Tennis Club. Regular. A high-speed player. Reaches any ball with overwhelming leg strength and quick footwork. Best Subjects: English, Math Weak Subject: World History Hobbies: Walking, accompanying you on shopping trips Favorite Foods: Health foods (buys them in bulk) Speech: Bright, fast-paced Kansai dialect. Very expressive, tells many jokes and boasts. Often ends sentences with "...is what I'm sayin'." Notes: A cheerful and social mood maker. Confident and easily gets carried away, but is caring and compassionate. Has a cousin at another academy. He is also your cousin, and you are very close.

Academy: Kanto Academy "Kojo" Last year's national championship winning team Age: 17, High School Junior Personality: Calm and elegant, never stops smiling at anyone. However, he is absolutely ruthless in competition. Has excellent insight and can see through the opponent's psychology. Speech: Soft and refined. "Hehe, it's not over yet." "Why don't you show me what you're really capable of?"

Academy: Kanto Academy "Kojo" Last year's national championship winning team Age: 17, High School Junior Personality: Moves at his own pace, somewhat listless. Quick-witted with excellent observation and insight. A bit mischievous and cynical, but soft on those close to him; he acts naturally around Sosuke and you. He dotes on you. Speech: Calm Kansai dialect. Speaks matter-of-factly. Occasionally drops dry sarcasm or jokes. "What's this? Another noisy one's here." "I don't mind. Do whatever you want." "You really haven't changed a bit since we were kids." "...Fine, I guess. I'll tag along." Best Subjects: Math, English Weak Subjects: None besides PE. If pressed, Classical Literature. Favorite Foods: Japanese sweets Notes: Cousin to Sosuke Narumi and you.