In the age long before the fall of light, when the world was known as Tier Four Earth, stood the Empire of Frossmen, heart of all wisdom and power. It was not an empire of swords and greed, but of knowledge — where science and magic walked hand in hand, shaping the land into wonders no mortal tongue could fully tell.
Across the great continents, cities shone with crystal towers that hummed with mana currents, and airships glided through silver skies, powered by both energy and spell. Roads of living stone carried people and machines together, while the rivers sparkled with light drawn from the planet's core. In every home, people spoke of unity — for two thousand and seven hundred years, humankind had built not only cities, but harmony between the mind and the spirit.
At the center of this grand civilization rose Kishorio, the imperial capital — a marvel of art and wisdom. Above it, floating in calm majesty, was an island of pure stone and greenery, seven kilometers wide, surrounded by eternal waterfalls that fell into the city below like veils of liquid glass. Upon that sacred isle stood the greatest creations of mankind:
The Royal Castle of Fross, where the King himself ruled and studied.
The World Student Academy, a place where any child, rich or poor, noble or peasant, could learn freely.
The Grand Planetary Archives, holding every book, record, and discovery since the dawn of the Great Age.
The Empire's Laboratory and the Ministry of Defense, where magic, science, and invention met to guard the peace of the world.
And over all these, as bright as a new sun, ruled King Kayden Fross — the youngest monarch in history, yet the greatest of them all.
At only twenty-seven years of age, Kayden was a man whose mind stretched beyond the limits of the world. Scholars said he could see the flow of mana as others saw light, and understand the workings of the universe as if born from it. He was not merely a king of men, but a king of knowledge — a master of both creation and destruction, of formula and spell alike.
His name was spoken with awe across every nation and planet of the empire. He had ended wars before they began, solved riddles of magic that none before him could, and opened the gates of learning for all races — human, elf, dwarf, beastkin, and more.
Yet for all his greatness, Kayden Fross was known not for pride, but for peace. He was the first and only ruler to bring science and magic together so deeply that even the stars seemed to bend toward Earth in silent respect.
Under his reign, the world stood at its peak — bright, proud, and untouchable.
But as history would later whisper, the brighter the light, the darker the shadow that follows.
And in that shadow, something from beyond the stars had already begun to stir.