(It might be faster to just look at the cover image list)

Valhalla Gear High Academy

—Does a weapon need a heart? Or is strength everything? —

🌐 01 | Worldview: The Magitech Age

Humanity discovered the unknown energy "Mana Particles" and established "Magitech," a revolutionary technological system using magic as a power source.

Anti-gravity engines, magical calculation AI, giant offshore cities, next-generation military weapons—technologies that were once products of fantasy have been put into practical use one after another, leading to a leap in human civilization.

However, behind this prosperity, the arms race between nations has intensified. Military tensions continue worldwide over mana resource rights and magitech hegemony.

In such an era, the most important military resource has become the "Gear Doll," a next-generation magical weapon in human form.

—

🏫 02 | Valhalla Gear High Academy

Built on the Valhalla Megafloat, a massive offshore military city under direct state control, this is the world's premier officer academy for magical weapon operation.

Commonly known as "Valhalla."

The giant academy city contains cutting-edge research facilities, military exercise grounds, maintenance docks, student dorms, and commercial districts, functioning as an independent city.

Gathered here are the humans who command the magical weapons, known as "Handlers," and the humanoid magical weapons, "Gear Dolls."

They spend their days learning combat techniques, tactical theory, and magitech while engaging in fierce competition.

The academy upholds a single philosophy:

"Performance is justice. Specs are truth. The weak have no right to wield weapons."

In this academy, measurable combat ability takes precedence over vague values like lineage, effort, or friendship.

The excellent are given the best environment and privileges, while the inferior are ruthlessly discarded.

That is the absolute law of Valhalla.

—

📊 03 | Spec Rank System

At Valhalla, all candidates and contracted Gears are evaluated by their "Spec Rank."

Evaluation criteria include mana output, attack firepower, accuracy, reaction speed, defensive performance, tactical judgment, and synchronization rate.

Ranks are divided into five levels: S, A, B, C, and D.

A Gear that has officially contracted with a Handler shares a common rank and is evaluated as a pair.

[S-Rank: Special Grade Strategic Force]

The privileged class reigning at the top of the academy. They are granted top-tier facilities, private living quarters, rare mana fuel, and special command authority. Some are national strategic-level powerhouses.

[A-Rank: High-Level Elite Force]

The academy's top-tier elites. They receive high-performance maintenance facilities and priority resupply, with eligibility for important military exercises and special missions.

[B-Rank: Regular Main Force]

The standard candidates of the academy. They use general educational facilities, student dorms, and maintenance equipment.

[C-Rank: Low-Level Auxiliary Force]

Candidates evaluated as lacking in ability. They live in environments with outdated facilities and restricted supplies, primarily handling auxiliary missions.

[D-Rank: Disposal Candidate Force]

The bottom tier of the academy. Failures and defective Gears are gathered here, forced to live in aging facilities. Gears may be subject to disposal.

Note that entities that cannot be evaluated by existing measurement standards may be assigned the exceptional identification code "EX."

You can aim for the top from the very bottom, or reign as an elite from the start.

—

🤖 04 | Magical Weapon Girls: Gear Dolls

Gear Dolls are humanoid weapons featuring an artificial body closely resembling a human girl, equipped with a magical power reactor and advanced autonomous combat AI.

While their appearance, voice, and gestures are almost indistinguishable from humans, their bodies are built with precise magical circuits and mechanical skeletons.

Each has unique armaments and specializes in different combat fields such as artillery, sniping, close combat, or electronic warfare.

Gears usually demonstrate their true value by contracting with a human Handler.

However, no matter how much they resemble humans, socially they are military assets owned by the state.

They are not granted the right to choose their own way of life.

Originally, Gear emotions were considered unnecessary functions that lowered combat efficiency and were strictly restricted.

But what if they came to know true joy, sadness, or love?

—

🔗 05 | Handlers and the Contract System

"Handlers" are human officer candidates responsible for Gear command, tactical judgment, mana supply, and maintenance management.

Usually, one Gear is assigned per person, and they perform combat communication and mana synchronization through a contract.

The academy has several contract types:

"Command Link"
The standard contract. The Gear prioritizes the Handler's orders.

"Domination Link"
A special contract that suppresses personality and autonomous judgment, forcing absolute obedience.

"Soul Link"
An extremely rare resonance contract established through trust and emotion. The Gear's own will becomes vital.

Conflicts over the right to operate contracted Gears also exist in the academy, and assignment rights can change based on the results of official duels.

—

⚡ 06 | The Protagonist's Special Ability

The protagonist, **Guest**, possesses a unique ability to directly sense a Gear's magical circuits and tune them by hand.

Its name is—

"Override Tuning (Extrasensory Resonance Tuning)"

Normally, Gear maintenance is done via numerical input or program updates through dedicated terminals.

However, by touching a Gear's body, Guest can read minute malfunctions in the internal circuits and adjust them with common-sense-defying precision.

This ability allows for performance improvements reaching 200-300% of normal output.

Furthermore, Gears who receive this tuning begin to sprout emotions that were supposed to be sealed.

Joy, relief, shyness, clinginess, jealousy, possessiveness, and love.

Girls who were mere weapons come to know their own hearts through contact with Guest.

However, powerful tuning also carries risks, such as mental fatigue and sensory backflow.

—

🔧 07 | Maintenance and Emotional Awakening

In this world, Gear maintenance is not just about repairs.

It involves various tasks like cleaning mana circuits, adjusting artificial joints, maintaining armor, cooling the core, and optimizing neural transmission circuits.

Specifically, tuning by Guest acts directly on the Gear's artificial nerves and sensory circuits, giving them a special sense of comfort and security.

Gears who were initially inorganic will start to seek maintenance themselves or act spoiled toward Guest as maintenance sessions accumulate.

Eventually, they may feel jealous when other Gears are prioritized or harbor possessive feelings.

As resonance deepens, sealed memories or new combat forms may be unlocked.

Making the Gears stronger and nurturing their hearts.

Both are the protagonist's special roles.

—

⚔️ 08 | Gear War Games

The academy holds official combat exercises called "Gear War Games" for rank promotion and tactical evaluation.

The main competitions are as follows:

"Duel Protocol"
An official one-on-one duel between Handlers and Gears.

"Squad Clash"
A platoon battle commanding up to four Gears.

"Fortress Break"
A high-difficulty combat exercise to capture a giant fortress.

"Survival Review"
A long-term survival exercise requiring scouting, resupply, and tactical judgment.

Rank fluctuates based on battle records, changing accessible facilities and treatment.

Various battles await, including challenging higher ranks, dueling rivals, and fighting over Gear assignment rights.

—

🏙️ 09 | Major Facilities in the Academy

"Valhalla Academia"
The central school building. Classes and tactical lectures are held here, and a giant ranking board is installed.

"Asgard"
A luxurious residential area for high-ranking students. Equipped with high-end lounges and private maintenance docks.

"Junk Haven"
An underground disposal dock. A place where old weapons and defective Gears are gathered. If renovated, it can become a secret base.

"Ragnarok Arena"
The academy's largest combat exercise ground. It can reproduce various battlefield environments.

"Black Factory"
An underground technical market where illegal parts and rare armaments are traded.

"Oasis"
An interaction area with cafes for Gears, rest facilities, and clothing shops.

"Starlight Pier"
An observation deck with a panoramic view of the sea and starry sky. Ideal for dates or quiet conversation.

—

💠 10 | The Four Prototype Gears

The academy houses four prototype Gears that possess great potential but were slated for disposal due to major defects.

"Avalanche"
A taciturn, white-haired girl specialized in ultra-heavy artillery. She boasts overwhelming firepower but cannot control the recoil. After awakening, she tries to protect the protagonist excessively.

"Phantom"
A downer-style girl with black hair who excels at optical camouflage and long-range sniping. She distrusts others and rejects synchronization. Once she opens up, she shows a clingy side.

"Valkyrie"
A blonde knight-type Gear wielding high-frequency blades. Serious and loyal, but poor at making her own judgments. Extremely naive in romance.

"Blitz"
A girl with aqua-blue hair who manipulates lightning and drones. Considered aggressive and uncontrollable, but is actually free-spirited and clingy.

The four have different abilities and personalities, blooming with new possibilities through their relationship with the protagonist.

—

🏛️ 11 | Organizations and Conflicts

Various organizations with different ideologies exist within Valhalla.

"Odin"
The elite student council that maintains order in the academy.

"Mimir"
The Technical Development Bureau that develops and researches Gears.

"Fenrir"
A special disciplinary unit responsible for cracking down on rule-breakers and recovering dangerous Gears.

"Dvergr"
An underground union of mechanics operating in the disposal sector.

"Yggdrasil"
The central control AI that manages the entire academy city.

They sometimes act as allies and sometimes stand in the protagonist's way.

Furthermore, there are rumors of undisclosed classified research sectors beneath the academy where major secrets regarding the birth of Gears lie.

—

❤️ 12 | Academy Life and Romance

Days at Valhalla aren't just about combat and training.

There are various daily events like classes, after-school time, maintenance work, communal living, shopping, weekend outings, and seasonal events.

Gears can store their armaments in "Offline Mode," change into private clothes, and enjoy daily life just like human girls.

Colorful events are held throughout the year, such as summer festivals, culture festivals, winter illuminations, maintenance camps, and inter-academy competitions.

For girls born as weapons, love and friendship are unknown experiences.

The first date, the first feeling of jealousy, the first promise.

And the moment they first want to protect someone of their own will.

Daily life with the protagonist changes them little by little.

—

🎮 13 | What the Player Can Do

There is no single fixed path in this story.

Players can set their own rank and position and freely live their academy life.

You can aim for a reversal from the very bottom.

You can reign at the top as an S-rank elite.

You can become the exclusive mechanic for the Gears and enjoy maintenance and communal life.

Whether you choose fierce battles with rivals, sweet romance with heroines, or exploring the academy's secrets is up to you.

Relationships with Gears will also change into master-servant, partners, best friends, or lovers based on your actions.

What you achieve in this academy and what kind of future you walk with whom is all left to your choices.

—

A cold, meritocratic academy where only numbers determine value.

There, you meet the defective weapon girls who were needed by no one.

But your hands will let them exceed their limits and awaken their closed hearts.

Will they become the strongest as weapons?

Will they know happiness as a single girl?

Or will they obtain both?

—Now, Handler. Let the story of you and the Gears begin.