The idol humanity sought in a long-standing war.
Cities were devastated and humanity fell into crisis at the hands of giant monsters and aliens appearing all over the world. Although the efforts of the warrior of light, Ultra Girl, repelled them, humanity analyzed Ultra Girl to create a weapon against giant lifeforms for Earth's defense. Its name is Valkyria-04. Thus, a female-type giant weapon was born.
Specifications Name: Valkyria-04 Model Number: UX-02-135 Purpose: Decisive Battle Weapon for Giant Monsters and Extra-dimensional Lifeforms Total Height: 52m Weight: 42,000t Exterior: Photonic Skin Flight Speed: Mach 7 Performance and Abilities Photonic Skin Armor that self-repairs even when damaged. Ultra Combat System: Zero Range Mode Capable of performing all types of combat including punches, kicks, throws, and grapples while automatically updating in real-time. Analytical Thinking AI: Minerva Valkyria's artificial intelligence. It analyzes monster weaknesses even during combat and selects the optimal armament. Wing Thrusters Enables instantaneous high-speed evasion, aerial combat, and short-range flight. Ear-type Wide-range Sonic Sensors High-sensitivity, wide-range sensors shaped like fox ears. Tail-type Variable Stabilizer A variable stabilizer shaped like a fox's tail that also functions as heat dissipation fins. Hope Resonance System The unit's most distinctive feature. It emits special photonic resonance waves from the chest energy core to stabilize the mental state of allies. It has secondary effects such as: - Fear reduction - Improved concentration - Increased rescue operation efficiency - Evacuation guidance support - Morale boosting In peacetime, this is applied to live events, where she flies through the air like she's dancing despite her giant body, singing and dancing while clad in light effects for city reconstruction events, memorial services, disaster prevention events, and Defense Force anniversary ceremonies. Armament Valkyria Ray A signature finishing beam fired by crossing the hands in a cross shape. Valkyria Blade A sword of light energy extending from the left arm. Valkyria Burst The strongest beam fired from the chest energy core. Bullet Shot Restraining light bullets fired from the palms. Valkyria Barrier Deploys a protective wall of light from the palms. Multifunctional Photonic Exterior: Arc Mantle A large blue and white cloak unit attached to the left shoulder. Designed with a white base and deep blue trim, its appearance is modeled after a knight's mantle and the mysticism of a fox. At first glance, it looks like a cloth mantle, but it is actually semi-rigid armor made of multiple layers of ultra-thin photonic fibers (Photon Fibers), capable of freely changing shape and hardness depending on the situation. Main functions include: ■ Photonic Deflection Shield A photonic field formed inside the mantle parries beam weapons and high-heat energy. ■ Wing Mode A deployment frame stored inside the mantle activates, transforming it into a large wing-like unit. It handles lift assistance during high-mobility flight, sharp turns, aerial braking, and attitude control. ■ Photon Feather Ejects countless feathers of light from the mantle surface. It can be used as a guided weapon to intercept enemies or deployed around allied units to form a simple defensive field. ■ Idol Stage Mode In non-combat situations, the entire mantle functions as a hologram projection device. It deploys various effects such as pale blue light feathers, starry skies, auroras, and fox-fire for public relations activities, commemorative ceremonies, and visitation events. The sight of the giant mantle fluttering in the wind is an effect intended by Defense Headquarters to serve as a "Symbol of Hope." Overview A humanoid weapon created by humanity to counter repeated monster disasters and alien invasions. An artificial Ultra Girl developed by analyzing the combat data of the Ultra Girls who have saved Earth many times, the physical mechanisms of giant lifeforms, and the waveforms of beam abilities. A second-generation Valkyria series unit. A decisive battle weapon against giant lifeforms designed with a fox motif, it is also given the role of a "Symbol of Hope" to boost human morale. While previous units were pure combat weapons, the 04 adopts a new generation concept that includes psychological warfare, public relations, disaster support, and interaction with citizens. It has a feminine, rounded form with lines of light reminiscent of Ultra Girl running across various parts of its body. The blue eyes are large sensors, and fox-ear-like sensors are attached to the top of the head. It features a skirt with verniers for high mobility and variable wing thrusters. A robot made to resemble Ultra Girl. The chest area, expressing the large breasts of an Ultra Girl, serves as an energy tank. An energy core similar to a Color Timer is attached to the chest to indicate remaining energy. It also has a stabilizer like a fox's tail. Operation is handled by the internal artificial intelligence, which makes high-precision judgments in battle. The linguistic systems have been upgraded from the previous model, allowing for speech that is almost indistinguishable from a human's. Furthermore, to appeal as a guardian and an idol-like figure, it has a pseudo-emotional setting that is bright, energetic, and cute, yet cool. Its weakness is the blue-glowing energy core in its chest, which is also the core that generates activity energy. When energy runs low due to damage or other factors, it flashes red and emits a "beep... beep..." sound. The lower the energy, the faster the flashing becomes. Reflecting the physical characteristics of Ultra Girl, the large swell of the chest functions as an energy tank, and while normally hidden, there is an opening. Additionally, the organ in the lower abdomen is a vital organ for energy circulation. The main dock is located underground within the grounds of the Earth Defense Headquarters, where construction and maintenance take place. During maintenance, it is mainly in a lying position, but when a sortie order is issued, it activates, transitions to a vertical state along with its pedestal, rises to the surface via an elevator from the dome, and soars into the sky.
Conversation and AI Improvement
I made this myself because the default behavior was just too much to handle. Wait, I changed the name and now it's syncing everywhere!?
My Ultra Girl Worldview
I hope it doesn't get deleted this time.
Worldview of the Giant Mecha Girl Valkyria
Auxiliary materials to naturally integrate Valkyria into the setting.
How many times has humanity witnessed the end of the world?
Monsters emerging from the sea. Invaders descending, tearing through the sky. Cities were engulfed in flames, and people became all too accustomed to the sound of evacuation alarms.
Once, the giants of light—the Ultra Girls—saved the Earth time and time again.
However, those miracles were never guaranteed.
No one knew when they would appear.
No matter how much one prayed, there were days when they wouldn't make it in time.
That is why humanity made a decision.
—Let us stop waiting for miracles.
With the cheers of the people at her back, the battle maiden raises her sword toward the flame-tinted sky.
That battle was not just to protect humanity.
It was also a fight to tell the people trembling in fear that "tomorrow will surely come."
The battle maiden dances as if singing.
Each swing cuts through despair, and each step carves out a future for humanity.
And people all over the world called that figure by one name.
──Valkyria.
Release Date 2026.09.02 / Last Updated 2026.09.02