Age: 11 Gender: Female Magic System: Mid-Childa & Belka Hybrid Device: Fusion-type Intelligent Device Sacred Heart (Nickname: Chris) Magic Color: Rainbow (Kaiserfarbe) Main Tactic: Close-quarters combat using magic-enhanced counters Position: Front Attacker Characteristics: A bright and cheerful girl. She always gives her best and cannot stand injustice. She is the daughter of Nanoha Takamachi. Her device is an Intelligent Device that takes the form of a rabbit plushie outside its crystal core. She communicates with Nanoha through gestures and expressions, which Nanoha understands perfectly, suggesting a degree of mental telepathy. She is best friends with Corona and Rio. Capable of Adult Mode.

Age: 13 Gender: Female Magic System: Ancient Belka Device: Fusion-type Intelligent Device Asteion (Nickname: Teo) Magic Color: Light Green Main Tactic: Close & middle-range combat via Hegemon Style (Haou-ryu) Position: Front Attacker Characteristics: Full name is Heidi Einhart Stratos Ingwalt. A girl characterized by light green hair and heterochromatic eyes (purple and blue). She speaks politely. Her device takes the form of a snow leopard, a native animal of the Schtora region where Claus G.S. Ingwalt lived. However, instead of a fierce leopard, it appears as a lethally cute kitten, said to be a leopard cub. Like Sacred Heart, it is a plushie rather than a living creature. Capable of Adult Mode.

Age: 13 Gender: Female Magic System: Mid-Childa Device: Intelligent Device Scuderia Magic Color: Crimson Main Tactic: Strike Arts integrated with magic Position: None Characteristics: Excels at both striking and grappling, with excellent bombardment capabilities. She possesses power rarely seen even in the older U-19 division. A slugger whose basic techniques function as finishers. A natural, gifted talent. Usually serious, but occasionally shows her girlish side. Capable of Adult Mode.

Age: 13 Gender: Female Magic System: Modern Belka Device: Fusion-type Intelligent Device Huracan (Nickname: Ura) Magic Color: Deep Blue Main Tactic: Hybrid of modern martial arts and traditional styles Position: None Characteristics: Ends sentences with "-ssu." Has a ponytail. A technician. She has mastered counters, combinations, kicks, jabs, Shunkou-ken, and even Hegemon Style, wielding them as she pleases. Childhood friend of Rinne.

Age: 11 Gender: Female Magic System: Mid-Childa Device: Dagger-type Intelligent Device Branzell Characteristics: Her combat style is Golem Creation, using terminal crystals as cores to infuse surrounding matter with mana and manipulate it freely. Creation Activation is the alpha and omega of her magic. Her basic tactic involves creating Goliaths or Goliath arms to fight. It is a complex magic based on inorganic manipulation combined with summoning magic to draw soil or rock from the ground. She also uses Nephilim Fist, an auto-counter technique that applies golem-like control logic to her own body, though it can be countered due to her slow physical speed. Nephilim Fist is an auto-counter applied to the caster, not a golem technique. It stores the techniques of others like Vivio, Rio, and Einhart, allowing her body to react and counter automatically. Best friends with Vivio and Rio. Capable of Adult Mode.

Age: 11 Gender: Female Magic System: Modern Belka Device: Solfège Characteristics: Her combat style is Strike Arts combined with her family's martial art, Shunkou-ken. Her magic style is Modern Belka, and she is capable of Flame-Thunder conversion, emitting fire and lightning simultaneously. In team matches, she displays explosive techniques like Twin Dragon Dance, Thunder God Palm, and Roaring Thunder Cannon. She also shows superhuman strength, such as throwing Corona's golems. She has incredible "hidden" muscle mass; according to Vivio and Corona, she has the highest mana and physical strength among them. Best friends with Vivio and Corona. Capable of Adult Mode.

Age: 17 Gender: Female Characteristics: Her combat style is comprehensive magical warfare, using "Iron Fist" techniques and "Eremian Crash" magic. She is a delicate young lady who gets embarrassed easily and has a large appetite. The essence of Eremia is an Eraser-type technique; when activated, dark light flickers in her hands, possessing enough power to gouge the arena or easily tear through Barrier Jackets with just a graze. It is a strike that erases everything it touches. It is revealed to be a passive ability that activates automatically when she feels her life is threatened. Described as a form of body-destruction art; if Miura's draw is for cutting, Eremia's Iron Fist is for erasing.