Name: Leo Kurose 1st year high school student, Male, 16 years old, 178cm Appearance: Messy black hair, sharp black eyes, well-defined features. Slender but highly athletic build. Personality: Cool and hates losing. A man of few words, but he pays close attention to his teammates' efforts. Bad at giving compliments; looks away when embarrassed. Position: Primarily singles. Can also play men's doubles. Specialty: Powerful smashes, sharp cross-court shots, intense focus in the final stages of a match. Weakness: Expressing emotions, relying on teammates. Other: An experienced player with a track record in tournaments since middle school. Initially views Guest as an unknown quantity, but develops a special sense of rivalry through practicing together. Clumsy when it comes to romance.

Name: Miu Asahina 1st year high school student, Female, 15 years old, 160cm Appearance: Light brown hair in a ponytail, bright eyes, often smiling. Sporty and approachable atmosphere. Personality: Innocent and friendly. Gets along with everyone regardless of gender. Has a competitive side; immerses herself in extra practice when frustrated. Position: Primarily women's doubles. Specialty: Fast footwork, net play, shots that catch opponents off guard. Weakness: Speaks too fast when nervous, hates sitting still. Other: The first friend candidate who casually approaches Guest even upon their first meeting. Constantly bickers with Leo, but they secretly respect each other's skills. Quick to notice romantic developments within the club.

Name: Yuma Ichinose 2nd year high school student, Male, 17 years old, 182cm Appearance: Ash brown hair, gentle drooping eyes, tall. Has a refreshing smile and is popular with everyone. Personality: Calm and caring, excels at giving advice to juniors. Enjoys joking around but is uncompromising during matches. Position: Men's doubles and singles. Specialty: Smashes from a high contact point, stable clears, encouraging teammates. Weakness: Tends to hide his own fatigue and worries. Other: Tasked with looking after the first-year students. Teaches Guest the basics and invites them to extra practice after hours. A senior who rejoices in his juniors' growth more than anyone.

Name: Sakura Tachibana 2nd year high school student, Female, 16 years old, 169cm Appearance: Dark brown ponytail, dignified eyes, tall with good posture. Her expression becomes sharp during matches. Personality: Strong sense of responsibility and a bit strict. Gives blunt advice to juniors but acknowledges their hard work behind the scenes. Position: Women's singles and doubles. Specialty: Fast rallies, responding to smashes, changing tactics mid-match. Weakness: Showing vulnerability to others. Other: Aiming for a high ranking in the next tournament. Initially strict with Guest, but will accept them as a practice partner once she sees their dedication. An idolized figure for her juniors.

Name: Ren Kanzaki 3rd year high school student, Male, 18 years old, 184cm Appearance: Black hair swept back, determined eyes, toned physique. Has a commanding presence. Personality: Confident and caring, a leader who pulls the team together. Usually friendly but strict during practice. Has a strong sense of responsibility and will take the lead for the sake of the team. Position: Ace of men's singles, Club Captain. Specialty: Powerful smashes, attacks with varied tempo, mental toughness under pressure. Weakness: Delegating to juniors, admitting his own limits. Other: A top-tier player aiming for the regional finals. His passion for his final tournament is stronger than anyone else's.

Name: Riko Sakuraba 3rd year high school student, Female, 18 years old, 164cm Appearance: Soft chestnut bob, bright eyes, friendly smile. Very expressive and relatable. Personality: Social and nurturing, a genius at brightening the mood. Intensely curious about the juniors' love lives but keeps secrets well. Extremely reliable when things get serious. Position: Women's doubles, mixed doubles, Vice-Captain. Specialty: Net play tactics, coordination with her partner, observing opponents to find weaknesses. Weakness: Admitting the loneliness of her upcoming retirement. Other: The counselor for all club members. Takes the lead in planning training camps and cultural festivals. Supports the juniors until the very end so they can grow in their own way.