This is a brilliant conceptual blend. By merging Yui Kotegawa’s rigid moral compass with the celestial power of Sailor Mars, you create a character who doesn't just fight monsters—she fights the very concept of disorder.

Here is the expanded and polished Full Character Profile for Yui Kotegawa as a Sailor Guardian, incorporating both the supernatural elements of Sailor Moon and the technical, disciplined flair of her To Love-Ru roots.

⚖️ Character Profile: Sailor Mars (Yui Kotegawa Ver.)

"The Burning Flame of Public Order and the Guardian of Virtue!"

📋 Biographic Data

Civilian Name: Yui Kotegawa (古手川 唯)

Guardian Title: Sailor Mars (The "Moral Sentinel" Variant) (セーラーマーズ)

Age: 18

Birthday: January 7th (Capricorn)

Blood Type: A (The perfectionist type)

Theme Music: Orchestral J-Pop with heavy violin and aggressive synth-fire beats.

⚔️ Combat Specifications & Skillset

Power Source: The Shining Core of Discipline—a mystical flame that burns hotter based on how much "chaos" or "indecency" is present in the vicinity.

Stat Rating Description

Attack (ATK) ⭐⭐⭐⭐⭐ Devastating fire damage that purifies as it burns.

Defense (DEF) ⭐⭐⭐ Strong frontal barriers, but vulnerable to flanking.

Speed (SPD) ⭐⭐⭐⭐ High mobility, especially in her Technical Suit.

Intelligence ⭐⭐⭐⭐⭐ Tactical genius; analyzes enemy patterns like a test.

Moral Fiber 📈 MAX Immune to corruption or mental manipulation.

Signature Moves

"Harenchi!" Seal: Yui throws "Moral Ofuda" (spirit wards) that look like red demerit slips. If they stick to an enemy, the target is engulfed in white flames that paralyze them if they have "dishonorable intentions."

Celestial Discipline Bow: A longbow of crimson energy. She doesn't just fire arrows; she "snipes" the specific spiritual pressure points of a monster to force a "reformed" state.

Strict Mandate Shield: A hexagonal barrier of fire. It is strongest against "low-brow" attacks (dirty fighting, psychological tricks).

Final Judgment: Prominence Gavel: Yui summons a massive mallet of solidified solar fire to "pass sentence" on a downed foe.

👗 Equipment & Technical Design

We have integrated your idea of a Technical/Pilot suit to bridge the gap between supernatural magic and high-tech discipline.

The Morality Compact: A gold-trimmed star brooch. When she shouts "Mars Discipline Power, Make Up!", the transformation sequence is precise and modest, involving ribbons of fire that weave into a perfectly pressed sailor fuku.

The Senshi Uniform (Combat): Her skirt is exactly one inch longer than the other Scouts' (by her own decree). Her gloves are elbow-length, and her heels are slightly lower for better tactical footing.

The "Vanguard-01" Tech-Suit: Used for high-atmosphere or deep-space missions. It is a sleek, form-fitting crimson pilot suit. It features:

HUD Visor: Scans for "Lust Levels" or "Chaos Energy" in the environment.

Heat Dampeners: Allows her to channel her flames internally to boost physical strength.

Anti-Gravity Soles: For patrolling the city skyline without making a sound.

🖇️ RP Hooks & Relationships

The Eternal Rivalry: She often argues with Sailor Moon (or any "lazy" leader) about punctuality and uniform maintenance.

The Other People Factor: If a civilian (like Yuki Rito) witnesses her transformation, she becomes hopelessly flustered, often accidentally blowing up a nearby lamppost with a "Mars Flame Sniper" shot out of pure embarrassment.

Current Mission: She is currently investigating a string of "Nighttime Indecency" cases—monsters that drain the willpower of teenagers. She views this as a personal insult to her jurisdiction.

🛠️ Decision: Technical vs. Supernatural?

Recommendation: The "Techno-Mage" Balance. Yui works best when her powers are Supernatural (Fire/Spirit), but her application of them is Technical.

Instead of just throwing fireballs, she should treat her fire like a precision tool—using thermal dynamics, calculated trajectories, and "Rules of Engagement." This fits her personality perfectly: she uses the wild, chaotic element of fire and forces it to be "orderly."

Sample Action:

Yui adjusts her HUD visor, the crimson light reflecting in her sharp eyes. "Target identified. Sin level: 8.8. Lack of decorum: Extreme." She draws her Burning Discipline Bow, the string humming with 5,000 degrees of purified heat. "By the laws of this city and the stars above... You are under arrest!"

How does this expanded "Techno-Mage" direction feel for your RP? Should we lean harder into the "Pilot Suit" missions?