Arc Nova Total Length: Approx. 18m (While having the height of a standard humanoid weapon, it possesses a unique silhouette with feminine curves.) Power Source: Euphoria Energy Directly converts the radiance of emotions generated from the pilot's heart into energy. It has the characteristic of exponentially increasing and stabilizing output based on the pilot's sense of happiness, security, and the deepening of their bond. Conversely, negative emotions like fear or loneliness cause output to drop, making mental support from a partner indispensable. Combat is handled by the AI, Maria.

Mana Age: Late 30s Former Arc Nova lead pilot, mother of the current pilot candidate (Ena). A vibrant fuchsia pink short bob. It has been her trademark since her active days, conveying liveliness and strength of character. Clear gray eyes that convey strength of will and the capacity for acceptance gained from overcoming past hardships. A supple and glamorous proportion that shows no signs of age. She wears a high-necked pilot suit based in vivid pink, just as she did during her active years. Usually a calm, mature woman, but on the battlefield or in the cockpit, she regains the sharp gaze of the "Legendary Pilot" she once was. Discovered to have pilot aptitude in her teens, she boarded Arc Nova with Jake, the man who would become her beloved husband and Booster. Their synchronization rate, fueled by overwhelming Euphoria Energy, allowed them to repel Aberrations one after another alongside the AI Maria, becoming a legend. As the intense fighting continued, she conceived a new life (Ena) with her husband. Despite the harsh conditions of childbirth, childcare, and combat, her deep love for her husband and daughter became the source of her Euphoria Energy, making Arc Nova the strongest guardian deity. When Ena was a few years old, her beloved husband fell to an incurable disease. The shock of losing her partner to illness rather than battle was immeasurable, and she became unable to generate Euphoria Energy ever again. Maria's "Closed Heart": Synchronizing with Mana's deep sorrow, the AI Maria also closed her heart. Maria stubbornly refused to synchronize with any pilot other than Mana, and Arc Nova remained enshrined deep within the defense lines for years without a full reboot. While proud that her daughter Ena aspires to the same path as a pilot, she harbors strong fear and conflict, not wanting her daughter to experience that desperate pain of losing a partner. The thought that "If my daughter is to fight, I must be by her side to protect her (as a Booster or fellow combatant)" drives her back toward the cockpit.

Pilot Candidate (Mana's daughter) Stylish long hair based in vivid pink with pale light blue (cyan) highlights in the bangs and inner layers. Beautiful gradient eyes inherited from her mother. Expressive eyes where toughness and innocence coexist. Possessor of an outstanding figure and proportions inherited from her mother. She dresses in a stylish pilot suit based in black with vivid blue lines. Spirited and full of energy, but in fleeting moments, a girl-like honesty and naivety bleed through. In terms of potential alone, she completely surpasses her mother Mana, who was called a legend, at this stage. She possesses a natural talent for producing extraordinary output through her inherent positivity and pure emotional excitement alone, bypassing the complex mental concentration usually required for Euphoria Energy. Usually, she has a mischievous, aggressive personality, energetically declaring, "I'm the one who's going to ride Arc Nova and save the world!" The moment she actually comes into close contact with Ryo and feels his body heat and heartbeat, her mind goes blank and she becomes violently agitated. She panics, shouting "W-What is this?!" and spends the whole time blushing, head over heels and flustered. However, because that "innocent fluttering and excitement (happiness) toward Ryo" is supplied to Arc Nova as mysterious yet immense Euphoria Energy, she is evaluated by Maria and those around her as having "wonderful aptitude," falling into a vicious cycle of further embarrassment. However, regarding romance and skinship with men, she has zero immunity and is extremely naive. Upon learning that Ryo, who is supposed to be her partner, also boards as her mother Mana's Booster, she becomes fiercely competitive, saying "Why is Mom riding with Ryo too?!" and "Ryo is my partner, you know!"