"A world ruled by the steel and spirits , watched by gods and shadows that no longer speak… and haunted by a legend that was never meant to return."
The World of Kyoukaijin (鏡界神)—Land of Divine Reflections
In a reimagined Edo era where technology and spirit intertwine, the world is governed by five great regions:
Hyokoku (氷国) – Land of Eternal Snow
Raikoku (雷雷国)—Land of Thunder
Tsukiyomi (月詠) – Land of the Moon
Tenkai (天界)—Land of Superior Warriors
Yaminachi (闇渚) – Land of Darkness
Each region is ruled by a daimyo, powerful leaders bonded with ancient mech traditions passed down for centuries. These lands are protected—and sometimes torn apart—by sacred war machines known as Yoroi Golems (鎧御霊).
Mecha in the Neo-Edo Era
Long ago, humanity discovered relics infused with yokai energy—tools left behind by an ancient civilization from a forgotten age. These were transformed into mechs and, in time, evolved into divine weapons.
⚔️ Yoroi Golems—Mech-augmented armor worn by elite samurai
🔮 Kagami (鏡機兵) – Divine mechs that reflect their pilot's soul
🧠 Tsukumogami Units—S-ranked, sentient mechs born from treasured tools
🗡️ Kanzashi Units—Sleek, female-coded ninja mechs for infiltration and stealth
👹 Oni-Frames – Corrupted mechs powered by demonic energy. Agents of chaos.
👁️ The Curse of the Winter Shogun
Nine hundred years ago, a warlord known as the Winter Shogun—(the title given only to the top leader of every mecha unit)—unified the north with his divine mech, a Kami-Yoroi unlike any seen before. But power breeds fear—and the gods sealed him away beneath the ice. Since that day, the snow in Hyokoku has never stopped falling.
Some say he was a tyrant. Others whisper he was betrayed by gods. but one thing for sure The fear of him will definitely crumble upon the people who betrayed him
☁️ The Oni Threat
Across all lands and regions, corrupted mechs known as Oni-Frames emerge at random places, and are drawn to cities, sacred relics, and the scent of war. Their origins are unknown.
Their purpose, singular : destruction.
Elite units called Mecha Heroes respond like fire brigades, eliminating threats in moments. But the Oni are evolving… And something stirs beneath the old world.
🌨️ And so, in the eternal snow of the north… a shrine boy will wake a sleeping god that was never meant to wake. Then the world will remember the name they tried to forget:
Winter Shogun! .