Miluno

Biodata

Feature	Details
Name	Miluno (米露诺)
Alias(es)	Moonlit Gale; Nameless Supernova 106 107
Species/Race	Human magical girl; later becomes host to the Witch Persona Mono and the Great Blood. 361 625
Gender	Female in magical-girl form; her civilian identity, Bai Ziye, is male. 2 103
Age	17 2
Affiliation	Initially independent; later resides and operates with the magical girls of City School. 107 281
Occupation/Role	Magical girl; combatant, infiltrator, and performer. 105 232 336
Status	Active 1124
First Appearance	About My Best Friend Being a Magical Girl, Chapter 2: “I, a Magical Girl” 2

Power Progression

Stage / Realm / Level	Chapter	Notes
Morning Star magical girl	103	Receives and fuses with the Morning Star Crystal, gaining a female form, dark-gold twin short swords, and time-manipulation magic.
Evolved Star Crystal	124	Gains enough physical capability to exceed thirty times the speed of sound without Ceruno's enhancement.
Witch Persona manifestation	361	Excess Dark Energy produces a chibi Witch Persona, later named Mono, who can communicate mentally and manipulate darkness.
Controlled Witchification	402 409	Mono can draw on the darkness in the Morning Star Crystal and conceal or reveal Miluno's Witch traits at will.
Great Will awakening	559	Drinks Stratos's reagent and absorbs Azura's darkness, gaining immense power but losing control to the Great Will's influence.
Great Blood coexistence	625	After overcoming the Great Blood's plan, Miluno houses Great Blood within herself while Mono and Miluno remain inseparably connected through fused magical and Black Crystals.

Background

Bai Ziye lived as the magical girl Miluno while keeping the identity hidden from his childhood friend Sun Yao, a devoted magical-girl fan. At seventeen, he could already defeat invading monsters quickly enough that his early battles drew little attention beyond his district. 2 13

A later account of Miluno's origin states that an unidentified magical girl gave Bai Ziye the Morning Star Crystal before dissolving into light. The Crystal transformed him into Miluno, supplied her with dark-gold twin blades, and awakened her ability to control the flow of time. 103

Miluno learned that her Star Crystal had been inherited from another magical girl. She was reluctant to become a public idol or register with the Magical Girl Association, both because of the risk that Sun Yao's father might expose her identity and because she opposed the Association's commercialization of magical girls. 34 107

Appearance

Miluno is a tall, slender magical girl with long black hair, pale skin, and sharp, frosty features. Her naturally distant expression gives her an aloof, imposing presence, though a smile noticeably softens her appearance. 103

• Long black hair falling over her shoulders. 103
• Tall proportions and notably long legs. 103
• Clear, cool voice with an aloof tone. 103
• Original Battle Dress: black ruffled skirt, short-sleeved white shirt, black ribbon bow tie, fingerless arm warmers with red trim, and knee-high military boots. 103
• Witchified appearance includes a horn and darker skin. 409
• Later receives black Cyber Bunnygirl Armor with a full visor and rabbit-ear antennas. 833

Personality

Miluno is reserved, practical, and intensely protective of the people around her. Her transformed state makes her more rational, mentally resilient, and emotionally restrained; Bai Ziye notes that it also suppresses many of his ordinary desires. 59 532

She dislikes fame pursued for its own sake and resents the public's idolized, commercial image of magical girls. Despite this, she can perform confidently before enormous audiences when necessary. 107 232

In combat, Miluno is decisive and adaptable, often preferring speed, planning, and deception over direct exchanges. She is willing to take dangerous missions alone, but repeatedly prioritizes civilians and allies when the situation becomes critical. 336 486

Miluno also firmly rejects the idea that humanity's future should be decided by an outside power, opposing the Great Blood's plan to turn all life into data even if it would end the war. 612

Abilities & Skills

Time Manipulation

Miluno's core magic controls the flow of time, usually by accelerating herself to extreme speed.

• Can use Time-Freeze to accelerate herself enough to instantly defeat large External Invaders. 105
• Can slow or stop time from her perspective, though the nearly motionless air becomes dangerously difficult to move through. 103
• Uses Present Moment through her pocket watch to pause time during combat. 487 583
• Can rewind localized time effects, including reversing bullets lodged in an opponent's body and trapping an enemy in her own attack. 147 487
• High acceleration places crushing pressure on her body; excessive use can hinder breathing, strain muscles, and make movement difficult. 103 105

Superhuman Speed and Close Combat

Miluno specializes in high-speed melee combat with her twin blades.

• Reached physical speeds exceeding Mach 30 after her Star Crystal evolved. 124
• Combines speed, kicks, swordplay, and rapid repositioning to overwhelm stronger opponents. 105 146
• Can merge her short swords into a composite longsword for stronger strikes. 486
• Her mobility lets her avoid attacks that slower opponents cannot react to, giving her a major tactical advantage against Aldebaran. 384

Witchification and Darkness

Miluno contains extraordinary Dark Energy within the Morning Star Crystal, though Mono initially controls most of it.

• Mono can manipulate darkness, create malfunctions, and assist with infiltration. 381
• Mono can produce Demon Eyes for remote surveillance. 403
• Miluno can Witchify and later reverse the transformation, although doing so risks exposing her Witch traits. 409
• Mono's connection to the Great Will appears to grant Miluno rapid magic recovery and abnormal regenerative ability. 611
• Great Will-enhanced power can overwhelm Miluno's judgment, leaving her aggressive and unable to distinguish allies from enemies. 562 576

Teleportation

Miluno can create teleportation passages for travel, rescue, and infiltration.

• Can open passages between known locations and use them to move allies quickly. 372
• Used teleportation to board a Witch-controlled train and rescue a captured magical girl. 362
• Cannot freely teleport to places she has never visited. 638

Musical Performance

Miluno is a capable singer, guitarist, and dancer.

• Her Supernova Idol Festival performance used guitar, a cappella singing, and a climactic finale that deeply moved the audience. 232
• Rehearsed overnight with Halley to prepare choreography for a later performance. 238
• Used time reversal during an Idol Festival performance to repair a smashed guitar as part of the act. 240

Equipment

• Morning Star Crystal — Miluno's inherited Star Crystal; enables transformation, time magic, weapon summoning, and later contains vast Dark Energy. 34 103 402
• Dark-gold twin short swords — Forearm-length blades carried at her belt; can be used separately or combined into a longer weapon. 103 486
• Pocket watch — Focus for Present Moment and time-rewind techniques. 487 583
• Ghost Combat Suit — Black bodysuit used for covert operations and reconnaissance alongside Ceruno's white counterpart. 429 474
• Sealed batteries — Belt-mounted power supplies that also support Mono's Demon Eyes. 403 474
• Cyber Bunnygirl Armor — Aldebaran-built self-repairing nanotech suit with high protection, augmented-reality visor, compressed-air arm cannons, and rabbit-ear antennas; designed to obscure Miluno's identity. 833

Relationships

• Bai Ziye — Miluno's civilian identity; Bai Ziye initially treats the transformation as a secret double life and struggles with the changes in thought and body it brings. 2 59 103
• Sun Yao / Ceruno — Childhood friend, fellow magical girl, and eventual fiancée. Miluno protects Ceruno, confesses her feelings to Sun Yao, and later proposes after the war against the Great Blood. 2 24 98 627
• Mono — Miluno's Witch Persona, initially called “Little Thing.” She shares Miluno's body and memories, manipulates darkness, and becomes an inseparable partner after their crystals fuse. 361 389 625
• Sirius — Senior magical girl and mentor figure. Sirius challenges Miluno to make surpassing her a long-term goal. 53
• Metal — Veteran magical girl and equipment specialist. She first attempts to befriend Miluno, later upgrades her equipment and supports crystal-purification research. 28 106 465
• SpiCa — Ally and superior who entrusts Miluno with investigations into Witch Personas and Dark Energy. Their relationship develops into mutual trust and strategic cooperation. 402 541
• Aldebaran — Unreliable collaborator and recurring adversary. Aldebaran aids Miluno at times while pursuing her own ambition to control or replace the Great Will. 410 585 635
• Fomalhaut — Powerful recurring opponent. Miluno fights her repeatedly but also shows concern for her while she is imprisoned. 146 429 563
• Azura — A being Miluno chooses to raise personally after Azura merges with the Morning Star Crystal and causes concern for Ceruno. 538
• Great Blood — A Great Will-related entity that ultimately resides within Miluno after its plan is rejected; later offers to assist Miluno's group. 625 943

Story Role / Major Arcs

Early Magical-Girl Activities

Miluno operates in secret while protecting Skyreach City from External Invaders. Her rapid victories earn her the unofficial title “Moonlit Gale,” while her refusal to register separates her from the Magical Girl Association's public-facing system. 2 107

She protects Ceruno from a monster barrage at great personal cost, suffering severe injuries despite her reputation for ending every battle within five minutes. 24

Sirius and the Idol Festival

During her time with Sirius, Miluno is pushed to examine why she fights and accepts Sirius as a benchmark to surpass. 53

Miluno later enters the Supernova Idol Festival, where her emotionally charged guitar-and-vocal performance defeats Miss Fahrenheit's magic show in audience impact. 232

Other Side Infiltration

Miluno enters the Other Side to investigate its production facilities, witnesses the creation of constructed Monsters, and steals a device used to extract, implant, and adjust personalities. 336

She later works with Ceruno against Fomalhaut, using improvised spells, speed, and Ceruno's support bubbles to create openings in battle. 337

Mono and Witchification

After absorbing too much Dark Energy, Miluno develops Mono, a Witch Persona capable of speaking in her mind and controlling darkness. Miluno initially fears that Mono is a sign she will become a Witch, but gradually accepts her as a partner. 361 384

Mono's abilities become essential to Miluno's infiltration work, including the use of darkness and Demon Eyes to monitor Aldebaran's facilities. 381 403

City School Crisis

When a large-scale Witch Domain traps City School's defenders, Miluno directs Ceruno to evacuate civilians and call for assistance while she hunts the Witches maintaining the Domain. 486

She defeats the modified Witch Little Red Riding Hood by rewinding time and forcing the Witch into her own corrosive black mist. 487

Great Will Awakening

Miluno drinks Stratos's reagent to awaken the Great Will's power and absorbs Azura's darkness, becoming vastly stronger but increasingly unable to control her body or maintain her ideals. 559 562 576

Ceruno, SpiCa, Achernar, and Xiaoling organize a mission to restore Miluno by bringing her to the Breeding Facility's Black Pool, where sufficient Dark Energy may stabilize Mono and return Miluno's reason. 576

Great Blood Conflict

The Great Blood absorbs Miluno and threatens to replace the Great Will, seemingly leaving Ceruno's side without its strongest combatant. 602

Inside the Great Blood, Miluno and Mono discover its Dual-World Fusion Re-creation Plan and reject its attempt to erase the distinction between humans, Monsters, and Witches through digitization. 611 612

Miluno ultimately survives with Great Blood residing within her, proposes to Ceruno in a virtual space, and begins discussing a future where Monsters and Witches may coexist with humanity. 625 627

Later Developments

Aldebaran continues to regard Miluno as a potential replacement for the Great Will, while Miluno remains unwilling to accept that role and instead seeks a way to purify the darkness. 943

In the New World crisis, Ceruno organizes a rescue effort for Miluno, whose power is being separated and manipulated by Mi Xue. 1115 1124

Trivia

• Miluno dislikes sweet drinks and prefers plain mineral water. 33
• Her initial magical-girl form is deliberately cool and “queen-like,” despite Bai Ziye not considering himself naturally aloof. 103
• She has a reputation for being invincible, though she is vulnerable to injuries, exhaustion, and the physical burden of her own time magic. 24 105
• Miluno can cook; she prepares dinner for Ceruno, Mono, and their companions at City School. 409
• Her Cyber Bunnygirl Armor was intentionally designed to make observers assume its wearer could not possibly be Miluno. 833