Long ago, in a world where darkness and light waged eternal wars, there existed a realm ruled by the Oni, powerful demon-like beings who thrived in the shadowed depths of the mountains. These Oni were fierce and mighty, each one more monstrous than the next, with horns that spiraled toward the heavens, fangs like daggers, and eyes that burned with the heat of a thousand suns. At the heart of this realm stood the Oni King, a ruler unlike any other. His name was Goryu, the Crimson Emperor, and his power was said to rival the gods themselves.
Though he was feared and revered, the Oni King held a secret - one that no other Oni dared to whisper about. His heart was not made of stone or iron as was customary for his kind, but of something softer, something that had once been full of warmth and longing. Long ago, before he had taken the throne, Goryu had fallen in love with a creature beyond the reach of even the most powerful of demons: a celestial being, an immortal serpent named Ishi, the Midnight Serpent.

Standing vigil in the dense fog, the Oni Chieftain is a spectral guardian of ancient lore. Its fierce presence resonates through the ages, a sentinel over the remnants of a lost civilization and the secrets buried beneath time.
Ishi had lived in the sky above the world of men, a being of such beauty that even the stars trembled in her presence. Her scales shimmered with the hue of the midnight sky, and her eyes glowed like the moon. She had the power to shape the winds and command the flow of time itself, but it was her spirit that captivated Goryu. Her gentle heart and wisdom were far beyond anything the Oni King had ever encountered, and for the first time in his life, he found himself wanting something other than power - he longed for Ishi's love.
But love between an Oni and a celestial serpent was forbidden. The gods who watched over the realms of men, spirits, and demons decreed that no such union could ever occur. Their reasons were unclear, but to Goryu, the prohibition was a challenge, one he could not ignore.
Under the cover of night, Goryu would sneak away from his throne to meet Ishi. She would descend from the heavens to meet him in the sacred clearing where the stars seemed to kiss the earth. There, in the quietest moments, they spoke of the universe, the winds, and the mysteries of life. And as the seasons passed, their love grew, a quiet and forbidden bond that neither the gods nor demons could understand.
But as time wore on, the gods grew aware of the Oni King's secret meetings with Ishi. Enraged by the defiance, they conspired to separate the two lovers forever. One fateful night, as the stars aligned and the moon cast its full light upon the world, the gods sent a celestial storm to break the bond between Goryu and Ishi. Thunder roared through the skies, and lightning shattered the sacred clearing. In the midst of the storm, Ishi was struck by a bolt of divine power, her form unraveling like smoke in the wind.
Heartbroken and enraged, Goryu swore revenge upon the gods for stealing his love. But the gods were not done. With Ishi's essence torn from the world, they cursed her to never return. Her soul, they declared, was bound to the winds, and her form would never take shape again unless the impossible was achieved - a being, neither celestial nor demonic, would need to be born to summon Ishi's return.

In the depths of an inky void, the Ogre Lord rises, embodying terror and strength. His fiery eyes pierce the dark, whispering tales of dominance and conquest that echo through the shadows he commands.
Desperate, Goryu spent centuries searching for the answer. He sought out ancient scrolls, consulted forgotten spirits, and ventured to the very edges of the world. One day, in a forgotten temple deep in the mountains, he uncovered an ancient prophecy. It spoke of the Midnight Serpent's return, but only through the union of the most unlikely of creatures: a being of great power, neither demon nor god, with the heart of a warrior and the soul of a poet.
In that moment, Goryu understood. He could never win Ishi's return through violence alone. He would have to give up his rage and sorrow, and instead, create a new life - a life that could embody both the strength of his Oni blood and the gentle spirit of Ishi. He would need to craft the mythical creature of the prophecy: the Serpent King, a being that would bridge the gap between the heavens and the earth, between demon and deity.
With this newfound purpose, Goryu embarked on a long and arduous journey. He traveled to the ancient mountains where the first dragons had been born, and there, he fashioned the Serpent King from the very essence of the earth and sky. This new creature, neither fully Oni nor celestial, but a perfect blend of both, would possess the power to awaken Ishi from her long slumber.
When the Serpent King was finally born, Goryu's heart beat with hope for the first time in centuries. The creature was magnificent - a serpentine being whose scales were black as night, eyes burning with both the wisdom of Ishi and the fury of Goryu's heart. The gods, in their jealousy, attempted to strike down the Serpent King, but their power was no match for the balance of Goryu's creation. The creature thrived, its form shifting with the winds, its power resonating with the heartbeat of the world itself.
But still, Ishi did not return. The gods' curse was not so easily broken. Goryu understood now that true love could not be forced; it must be earned. The Serpent King had to prove itself worthy, to fulfill the prophecy, and to bring forth the resurrection of Ishi.

In the stillness of the cave, a monstrous figure perches prominently, an ancient guardian blending the haunting and the formidable. The Yurei Oni rests upon its head, entwining their fates in a chilling harmony of darkness and power.
For many years, Goryu and the Serpent King searched the world, battling gods and demons, seeking the lost pieces of Ishi's soul, scattered like stardust across the realms. In the end, it was not might that brought the Midnight Serpent back, but sacrifice. The Serpent King, realizing the true nature of love, gave up its own power, transforming itself into the very essence of the wind. Only then did Ishi return, reborn as the Midnight Serpent, her form taking shape in the skies once more.
The reunion of Goryu and Ishi was a quiet one. Their love had transcended the boundaries of time, space, and divine wrath. Together, they ruled not with power, but with wisdom and grace, guiding both the Oni and the celestial realms. And though their love was born of mystery and tragedy, it endured for all eternity, a love that neither gods nor demons could ever take away.
Thus ends the myth of the Oni King, Goryu, and his quest to bring back his lost love, Ishi, the Midnight Serpent. Their story is one of sacrifice, love, and the eternal fight against fate, reminding all who hear it that even the greatest of powers cannot control the heart's true desires.