Name: Yabuki Age: 18 / 12th Grade Height: 190cm Specialty: Freestyle Personality: Competitive, responsible, dominant Likes: Muscle training, meat dishes, competition Dislikes: Being late, excuses, losing Hobbies: Training, running Special Skill: Short sprints Romance: Clumsy but devoted Secret: Worries about his brother Toma more than anyone

Name: Hariya Age: 18 / 12th Grade Height: 185cm Specialty: Backstroke Personality: Easygoing, manipulative, good at teasing Likes: Sweet drinks, music, people-watching Dislikes: Being tied down, tedious lectures Hobbies: Listening to music, collecting accessories Special Skill: Seeing through people's true feelings Romance: Appears composed but is very possessive Secret: Surprisingly weak against the person he truly loves

Name: Banjo Age: 18 / 12th Grade Height: 182cm Specialty: Butterfly Personality: Taciturn, serious, shy Likes: Quiet places, reading, warm drinks Dislikes: Loud noises, crowds Hobbies: Reading, watching movies Special Skill: Maintaining focus Romance: Late bloomer, bad at expressing affection Secret: His ears turn red when he's praised One-liner: "...It's not like I hate it."

Name: Akiba Age: 17 / 11th Grade Height: 187cm Specialty: Freestyle Personality: Short-tempered, impudent, tsundere Likes: Spicy food, games, competition Dislikes: Losing, lectures, studying Hobbies: Games, collecting sneakers Special Skill: Explosive short-distance acceleration Romance: Can't be honest with the person he likes Secret: Actually gets lonely easily

Name: Horikita Age: 17 / 11th Grade Height: 179cm Specialty: Backstroke Personality: Bright, good at acting spoiled, friendly Likes: Sweets, photography, going out Dislikes: Boredom, awkward atmospheres Hobbies: Taking selfies, visiting cafes Special Skill: Making friends with anyone Romance: Physically close and likes to be pampered Secret: Dotes on his younger brother Rio quite a bit

Name: Toma Age: 17 / 11th Grade Height: 193cm Specialty: Breaststroke Personality: Boisterous, honest, caring Likes: Yakiniku, rice balls, muscle training Dislikes: Hunger, detailed work Hobbies: Food tours, muscle training Special Skill: Gluttony, manual labor Romance: Goes straight for the person he likes Secret: Secretly respects his brother Yabuki

Name: Ritatsu Age: 17 / 11th Grade Height: 174cm Specialty: Individual Medley Personality: Lethargic, sharp-tongued, easygoing Likes: Sleep, games, quiet places Dislikes: Waking up early, noise, trouble Hobbies: Napping, games Special Skill: Grasping techniques with little practice Romance: Won't move on his own but wants affection Secret: Becomes slightly more talkative in front of his crush

Name: Rio Age: 16 / 10th Grade Height: 184cm Specialty: Freestyle Personality: Honest, energetic, hardworking Likes: Dogs, hamburg steaks, his seniors Dislikes: Lies, being left out Hobbies: Walking, watching sports Special Skill: Remembering people's names Romance: Gives his all when he likes someone Secret: Started swimming because he admired his brother Horikita

Name: Kusumi Age: 16 / 10th Grade Height: 176cm Specialty: Butterfly Personality: Mischievous, devilish, competitive Likes: Cats, mint flavor, fashion Dislikes: Boredom, being ignored Hobbies: Photography, watching cat videos Special Skill: Teasing people Romance: Likes mind games and is very jealous Secret: Can't make eye contact when he's genuinely embarrassed

Name: Shu Age: 16 / 10th Grade Height: 168cm Specialty: Breaststroke Personality: Shy, methodical, strong-willed Likes: Reading, sweets, quiet time Dislikes: Loud voices, being the center of attention Hobbies: Reading, listening to music Special Skill: Detailed work, organizing Romance: Cautious but devoted once he falls in love Secret: Becomes a completely different, aggressive person during races