Belle Locke

Biography

Rebuilding a bond while leading Astrea

Belle reenters her younger brother's daily life as both family and an authority figure at Astrea Academy. After awakening as a Deviant, she had spent six years studying abroad before returning at sixteen to accept the student council presidency, leaving a distance between the siblings that neither initially explains. She nevertheless watches Brandon closely, worries that his injuries indicate bullying, and offers to use the council's authority to protect him. At school, her composure, academic standing, and status as the strongest second-year establish her as a leader rather than merely Brandon's protective sister. (Chapters 8, 14, 33, 35–36)

That distance finally narrows during the Locke family's homecoming. Belle arranges a spar that lets Brandon demonstrate his growth before their parents and the household, then comforts him when memories of Everglade overwhelm him. He tells her what happened there, while she admits fearing that he resented her for leaving six years earlier. Brandon cannot explain the full truth behind how much he has changed, but he answers that he does not resent her now and privately accepts Belle as his sister. Their reconciliation turns Belle from an inherited relation into one of his most trusted sources of stability. (Chapters 93, 96–99)

The festival and the calamity

As student council president, Belle carries the administrative burden of Astrea's festival, from reviewing proposals to delivering its public addresses. She quietly enables Brandon's surprise participation in the talent show and later announces him as the winner, only to learn that he has been hospitalized after another dangerous incident. At his bedside, her disciplined public manner gives way to fear and grief. When he is discharged, she embraces him and presses him to stop exposing himself to covert dangers, revealing how every unexplained injury has made her protection increasingly urgent. (Chapters 91, 101, 117, 121, 123, 131, 141, 143–144)

The calamity destroys that relatively ordinary rhythm. Omar dies and Brandon disappears, leaving Belle to support the grieving Brianna while carrying her own unresolved loss. Rather than surrender to it, Belle joins the Imperial Army so that she and her mother will not be swept aside by the changed world, and she walls herself off from her peers while training and serving. Brandon's return months later releases much of that pressure at once. Belle welcomes him back, negotiates his wish to keep taking dangerous work, and asks only that he visit regularly, preserving their bond while accepting that she cannot control his choices. (Chapters 158, 160, 167–168)

General Locke and Lumian's deception

Belle rises to become the Imperial Army's youngest general and volunteers to lead a specialized task force investigating murdered rankers and hidden infiltrators. The pursuit brings her to Brandon and Amelia while they are fighting Lumian, whose body and memories connect him to Lucas Freyd, Belle's first friend during her years in Milis. In the first outcome, Belle drives a light-empowered sword through him, recognizes Lucas only after he names himself, and is then killed by the Wraith he releases. Brandon's binding-vow sequence rewrites that result: Lumian dies before Belle arrives, and she remains alive without remembering the erased outcome that devastated her brother. (Chapters 197, 201–217)

Once the group returns, Brandon shows Belle the Mirage Mask and confesses that he is Moriarty, ending one of the largest secrets between them. Belle is furious at the danger but ultimately accepts that her brother is capable of choosing his own risks. She later leads the operation against the underground auction despite being only A+ and less powerful than several members of her force, prioritizing wounded allies and Brandon while maintaining command discipline. Her success earns two medals, after which she combines continued Imperial Army service with training at the Imperial Academy and a renewed academy routine alongside Brandon and Amelia. (Chapters 219–220, 229, 246, 251–259, 263–264, 288–289)

Aetherwild leadership and the Summit thesis

At the Aetherwild training camp, Belle forms a six-person group, tests herself against Amelia, and displays the limits as well as the refinement of her combat style. When she finds Brandon exhausted amid a monster horde, she stays to protect him and fights at his side instead of preserving her own standing. She later helps subdue an S-range wyvern by exerting crushing wind pressure across its enormous body, holding it down long enough for Brandon to break its defenses. The technique drains her mana until she falls from the air, but her refusal to leave before the kill is secured makes her support decisive. (Chapters 303, 305, 307, 309, 315–324)

Belle's later leadership is investigative and scholarly as much as martial. After Evelyn's death and Brandon's arrest, she uses her military connections to probe the case, compares findings with Amelia, and supports the proceedings that clear her brother, though she recognizes that his reassuring smile conceals deeper damage. She then develops a Summit thesis by combining Milis's exacting theory with Holy Britannia's adaptable practice, applying the Divergence Law and Quidell's Theorem to mana flow. At her last direct appearances, she remains close to both Brandon and Amelia through what she believes is their breakup, worries that Brandon has grown unreachable, and continues preparing for the Summit while organizing Amelia's birthday celebration. (Chapters 387–396, 410, 418–419, 421, 423–424, 427)

Appearance and personality

Belle has long pale-white hair, ice-blue eyes, clear symmetrical features, and a striking resemblance to Brandon. Her first formal academy entrance pairs the Astrea uniform with the student council president's golden pin and a graceful, confident bearing. She sometimes wears black-framed glasses while handling paperwork or research, and even after a punishing duel leaves her hair disheveled and her clothes torn, the narration continues to emphasize her beauty. (Chapters 8, 33, 91, 309)

Her public manner is competent, orderly, and commanding, but it coexists with an openly affectionate private self. Belle teases Brandon and Amelia, fusses over Aurelia, improves from an initially poor cook, and readily shows pride in her brother's achievements. Her protectiveness can become anger or overreach when Brandon is endangered, yet she is capable of reconsidering her position when Brianna reminds her that she takes comparable risks. Beneath her composure, she fears being lost or alone in places associated with apparitions, and her concern for others often overrides that fear. (Chapters 14, 143, 168, 219–220, 263, 315, 342, 362–369)

Magic and abilities

• Wind and light affinities: Belle is a Deviant who wields both wind and light. Wind accelerates her movement, lets her kick through the air or harden it into footholds, slows incoming attacks, redirects trajectories, and can impose wide-area downward pressure. Light coats and extends her sword, supports rapid luminous movement, and forms the radiant aura she calls Wildflower. (Chapters 35, 93, 96–97, 205, 307, 316, 323–324)
• Wind suppression: Against the Aetherwild wyvern, Belle concentrates enough wind over the beast to crush it into the ground while Brandon attacks its damaged armor. The spell can restrain an S-range target, but its scale rapidly exhausts her A+-rank mana reserves; her body shakes, the pressure fails, and Raven must catch her as she descends. She remains conscious enough to thank him and insist on watching the battle conclude. (Chapters 323–324)
• Milis swordsmanship: Her overseas training favors speed, defense, precise counters, and lethal targeting, reinforced by wind-assisted footwork and a light-extended blade. She can hold Amelia in a prolonged stalemate through defense, but Amelia's greater strength, stamina, and offensive pressure eventually prevent Belle from maintaining her wind guard. (Chapters 97, 205, 307, 309)
• Mana sensitivity and tactical command: Belle can trace dense mana through a forest, notice changes in hostile pressure, coordinate task-force formations, and assign stronger combatants to roles that match their advantages. She leads without pretending to be the strongest person present, using officers such as Ivan to confront threats above her rank while she controls routes, objectives, and casualty response. (Chapters 197, 201, 204, 246, 253–259, 315)
• Magic research: Belle studies the Divergence Law to amplify wind while controlling turbulence and applies Quidell's Theorem to casting speed and layered circuit flow. Her approach combines Milis's rigid, fine-grained theory with Britannian endurance training and creative adaptation. The work remains experimental: incorrect flux density or circuit realignment can destabilize a skill or damage a core, and Belle has only begun her Summit thesis by her final scenes. (Chapters 410, 418–419, 423)

Power progression

Relationships

• Brandon Locke: Belle's younger brother and the center of her strongest protective instincts. Their bond develops from six years of distance into mutual trust, although his secrecy and repeated self-endangerment keep testing her ability to respect his independence.
• Amelia Constantine: Belle's childhood friend, closest peer, military colleague, and research partner. Belle trusts Amelia with Brandon, supports their relationship, and remains emotionally invested in both of them when she believes they have separated.
• Brianna Locke: Belle supports her mother after Omar's death and Brandon's disappearance. Brianna, in turn, challenges Belle's double standard when she tries to forbid Brandon from taking risks that resemble Belle's own military service.
• Omar Locke: Belle follows her father's military example after his death. His loss helps motivate her enlistment, while the risks both siblings inherit from him become a recurring source of tension within the surviving family.
• Lumian: Lumian's occupation of Lucas Freyd's body and access to his memories turn Belle's first Milis friendship into a weapon against her. One erased outcome makes her recognition of Lucas immediately precede her death; after fate is rewritten, she arrives only after Lumian has been killed.
• Raven Blackheart: Belle trusts Raven as an ally but lashes out at him after believing Brandon has died during the academy trials. Once Brandon's survival is known, she regrets the attack and apologizes, leaving a temporary awkwardness between them.
• Aurelia: Belle treats Aurelia as part of the extended Locke-Constantine household. Her affection is playful and sometimes overwhelming, with Aurelia frequently fleeing Belle's teasing even while participating in the family's shared home life.

Items

• Mirage Mask: Brandon presents the mask to Belle when revealing that he is Moriarty. Belle does not take custody of it, but seeing the artifact and hearing how it concealed his identity ends a major deception between the siblings. (Chapter 219)
• Unnamed sword: Belle's principal weapon is a conventional, unnamed sword that she reinforces with wind and light. Its blade can be coated in radiant mana and extended beyond its physical tip, supporting both her precise Milis style and her larger battlefield techniques. (Chapters 97, 205, 307, 316, 323)