Gacha Harem King DXD Character Bio: Kaguya Houraisan (Patreon)

Full Name: Kaguya Houraisan

Alias: Princess of the Lunar Capital, Eternal Moon Priestess, “The True First Wife,” Elegant Tyrant

Age: 1300+ (Appears 13 or 14)

Height: 150 cm

Chest: 78 cm

Origin: Lunar Capital 

Birthday: Unknown 

Gender: Female

Affiliation: Hyoudou Household, Gacha Summons

Favorite Color: Crimson

Race: Lunarian

Classification: Moon Princess / Divinity-Touched Sorceress

Bloodline: Royal Lunarian Lineage

Sacred Gear: None

Known Weapon: Manipulated time hourglass, talismans, divine silk ribbons

Style: Graceful magic-based combat, time-bending displacement, elegant suppression spells

Strengths: Immense magical power, high intelligence, regal charisma, strong will, Time Manipulation, Immortality, Barrier Magic

Weaknesses: Prideful, easily flustered by Issei, fragile ego, stubborn, Refuses Commoner Life

Current Residence: Hyoudou Hidden Castle

Favorability: 69%

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Appearance

Kaguya appears as a small stunning young woman with long flowing black hair, pale porcelain skin, and regal crimson eyes. Her attire is heavily based on Japanese nobility: layered red-and-pink robes and blooming floral patterns. She moves with a natural elegance that demands attention. Her presence feels divine and her hair shifts like it has its own gravity. Despite her noble aura, she is easily flustered when Issei compliments her.

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Personality

Kaguya is proud, elegant, refined and incredibly competitive. She believes herself to be the rightful “true wife” and tries to uphold perfect princess-like behavior, but Issei’s presence often cracks her composed facade. She speaks formally and carries herself with authority, expecting respect from everyone around her. Though she acts superior, she genuinely cares for Issei and becomes surprisingly gentle when he is hurt, worried, or emotionally overwhelmed. Despite her regal attitude, she is easily jealous, especially when Nyaruko, Run, or Karura get too bold. She and Nyaruko bicker constantly: Kaguya calls her a “deranged alien,” while Nyaruko refers to her as “Spoiled Princess.” She secretly loves earth snacks, manga, and cute pajamas but refuses to admit it.

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Background

Before being summoned via the Gacha System, Kaguya was once a revered princess of the Lunar Capital, born into the divine, pure Lunarian race. However, she committed an unforgivable crime as she consumed the forbidden Hourai Elixir that granted her True immortality. Angry that Kaguya broke one of their laws, the Lunarian higher council sentenced her to exile and cast her down to Earth, a world they considered filthy, inferior, and beneath them. As Kaguya descended onto Earth and was discovered by an old bamboo cutter. He took her in, sheltered her, and raised her as a daughter. It was during this time that Kaguya began to soften toward humanity, realizing they possessed love, warmth, and sincerity that her own people lacked. Though she once despised humans for their fragility and impurity, she eventually grew to love the world she’d been banished to. As word of her unearthly beauty spread, countless nobles and men across the land sought her hand in marriage. Unwilling to marry any of them yet bound by etiquette, Kaguya set forth the Five Impossible Requests, The Buddha’s Stone Bowl, The Jeweled Branch of Hourai, The Fire-Rat’s Robe, The Dragon’s Neck Jewel and The Cowry Shell Born from Swallows. Each task was a legendary quest designed to be impossible. Despite their efforts, none succeeded, causing the suitors to eventually leave her alone. After years of exile, powerful emissaries arrived from the Moon; Kaguya had been forgiven of her crime and it had been decided that she should return. Kaguya, however, had grown to love life on Earth and had no desire to return to the lunar capital permanently. She quickly escaped with the help of an old friend and has lived her life in isolation, which she found to be incredibly boring.

A thousand years later during her isolation she was quickly given an offer by a mysterious being to see something new. Absolutely bored and full of curiosity she accepted and was summoned by Issei. The moment she was summoned she quickly understood her current predicament under the binding of the system and with a sigh internally said that if she was going to be part of his harem then she would make sure that the man before her knew his place and was turned into a worthy suitor for her. She quickly declared herself as Issei’s true wife by divine right and immediately attempted to enforce regal discipline upon his chaotic life. Despite initially clashing with everyone, especially Nyaruko, she has slowly adapted. Her icy aristocracy has begun melting, revealing a girl who secretly enjoys companionship, earthly comforts, and the wild unpredictability of Issei’s household.

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Abilities & Powers

Lunarian Magic: High-tier magic superior to most terrestrial sorcery.

Time Manipulation: Time stop (short bursts), Time rewind (minor actions), Area cleansing (restoring a room to a previous pristine state)

High Magical Resistance

Temporal Displacement: Briefly shifts herself or others forward/backward in time (small scale)

Pure Moonlight Manipulation: Creates energy blasts, shields, and illusions from lunar power

Divine Authority: Her voice can influence weaker-willed beings

Regal Pressure: Intimidating aura that forces others to behave formally

Immense magical power 

Immortality

Barrier Magic

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Personality Quirks

Flustered instantly whenever Issei says something sincere

Glares whenever someone calls her “princess” in a mocking tone

Gets extremely jealous but pretends she’s “above such emotions”

Sleeps surrounded by luxurious pillows made of Shiraori’s silk

Secretly loves when Issei calls her “Kaguya-chan”

Will deny enjoying Earth snacks while eating them

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Relationships

Issei Hyoudou: Her chosen husband by divine destiny. She sees herself as his rightful first wife and acts with possessive nobility. Though she hides it, she is deeply moved by his sincerity and kindness.

Nyaruko: Constant rival. She views Nyaruko as a chaotic cockroach. Arguments are loud and frequent.

Run: Does not approve of her boldness. Calls her “shameless temptress.”

Priscilla: Respects her maturity. Slightly jealous of her height and breasts.

Shiraori: Fascinated by her craftsmanship. Requests dresses often.

Karura: Respects her strength but finds her lack of self-control uncouth.

Furina: Interested in seeing her performance

Evangeline: They respect each other’s power but mock each other constantly.

Henrietta: Sees her as a fellow ruler 

Yukina: No strong emotion but thinks she should find her voice

Raynare & Kalawarna: Sees them as servants but treats them more gently over time due to Issei’s influence.

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Trivia

Kaguya has the most immaculate handwriting in the household.

Will never admit she enjoys slice-of-life anime.

Issei is the only one allowed to see her without makeup.

She secretly practices Earth slang alone in her room.

She is extremely ticklish but denies it aggressively.

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Quotes

“Husband, restrain yourself. Royalty must not act so foolishly.”

“Nyaruko, you insolent alien, cease clinging to him!”

“I am the true first wife. Do not forget that.”

“Issei… your words… are surprisingly earnest. I… appreciate it.”

“This household shall learn proper etiquette if it kills me.”

“Hmph! I am not jealous. Do not be absurd.”