Far-far away, in the distant realm where mortals and spirits coexisted in fragile harmony, there lived a Tennin named Yao Bikuni, a celestial maiden whose beauty was said to rival the moon's reflection on a still lake. The Tennin were heavenly beings who often visited the earth to bestow blessings upon worthy mortals, but Yao Bikuni's role was more sacred than that. She was entrusted with a task few Tennin were granted - she brewed the Potion of Eternal Twilight, a magical elixir that could grant immortality or, in the wrong hands, unimaginable power.
The secret to crafting this potion was hidden deep in the celestial gardens, where the essence of stars was plucked from the heavens and the blood of phoenixes mixed with the dew of an eternal spring. For centuries, Yao Bikuni remained faithful to her sacred duty, ensuring that only the most deserving souls received even a single drop. Yet, despite her heavenly role, Yao's heart was not untouched by mortal emotions. One such emotion was love, and it was this love that set into motion a tale of revenge, tragedy, and transformation.
The Mortal Prince and the Potion's Price
In a prosperous kingdom near the edge of the earthly realm, there lived a prince named Akihiko, whose reputation was as great as his wealth. He was known for his cunning mind, his strength in battle, and his endless ambition. Though many claimed his heart was as cold as winter's breath, Akihiko's gaze softened upon hearing stories of Yao Bikuni. Her ethereal beauty and the power of her potion captivated his imagination. He longed for more than just fleeting fame - he desired eternity itself.

This enchanting portrayal of Fujin showcases her elegance as she walks upon a timeless bridge, with the misty mountains whispering ancient secrets, embodying the spirit of freedom and the untamed forces of nature.
The prince, knowing the dangers of approaching a Tennin, hatched a cunning plan. He journeyed to the shrine where Yao often descended from the heavens and presented himself not as a prince, but as a humble scholar in need of wisdom. Over the course of many moons, he visited her shrine, bringing with him gifts of poetry, flowers, and small treasures, each wrapped in sincerity. Yao, drawn to the warmth he feigned and the beauty of his offerings, soon fell in love.
One evening, beneath the moonlit sky, Akihiko knelt before Yao and confessed his love. "My lady," he whispered, "I have sought your company not out of selfish desire, but because my heart has known no peace since I first laid eyes upon you. But there is one thing that troubles me. Mortality is a cruel fate for those in love. Will you grant me the Potion of Eternal Twilight so that I may remain by your side forever?"
Yao Bikuni, her heart clouded by love, agreed. "For you, my prince, I will do what no mortal has been allowed before. I will brew the potion, but know this - such power comes at a cost far greater than gold. You must trade something precious to your soul."
Akihiko, ever the strategist, knew he had little intention of keeping his promise to Yao once he obtained the potion. He planned to use its power to conquer kingdoms, not to spend eternity with a celestial being. He smiled and gave Yao a necklace, an heirloom from his ancestors, claiming it was his most treasured possession. Yao accepted the token, believing his lie, and set to work.
The Brewing and the Betrayal
For seven days and nights, Yao Bikuni labored over her cauldron, weaving together the threads of twilight, the essence of phoenix feathers, and drops of starlight into the potion. The air shimmered with magic, and as the final drop fell into the elixir, the potion glowed with an otherworldly light. With a heavy heart, Yao presented the vial to Akihiko.

Riding through a world of mist, Sumire and her horse move with grace, the distant pagoda offering a serene backdrop to their journey through this ethereal landscape.
Akihiko took the potion with trembling hands, gazing into its depths. "With this," he thought, "I will rule all lands and live forever, feared by all."
He drank it in one swift motion, his heart racing as the power surged through his veins. But as the light of the potion faded, something changed within him. His pulse slowed, his skin grew cold, and a sharp pain tore through his chest. He staggered back, gasping, as Yao looked on in horror. "What is happening to me?" Akihiko screamed.
Yao's face paled as she realized the truth. "You have betrayed me," she said softly, her voice laced with sorrow and anger. "You asked for eternity not out of love, but out of greed. The potion you have taken does not grant immortality to the unworthy - it seals their fate. You will live forever, but not as a man. Your heart will harden like stone, and you will wander the earth as a cursed being."
Akihiko's body convulsed as he transformed. His once handsome face twisted into a mask of agony, his skin turning to cold, unyielding stone. In a final moment of terror, he became a statue, his eyes frozen in an eternal expression of regret.
The Curse and Yao's Vengeance
Yao Bikuni stood before the stone figure that had once been her beloved. Her heart, shattered by his betrayal, turned dark with grief and rage. She realized that the price for the potion was not only his - but hers as well. For her love had been genuine, and in giving him the potion, she had sealed her own fate.

With her sword raised in strength and determination, Apsara radiates confidence in this lush forest, where nature's vibrancy mirrors her spirit, creating a powerful image of connection with the wild and untamed.
Consumed by bitterness, Yao turned her back on the mortal world, vowing to exact revenge on those who sought her potion for selfish reasons. From that day forth, she roamed the realms of men, offering her elixir to those whose greed mirrored Akihiko's. But rather than granting them power, she cursed each one in turn, transforming their ambitions into eternal torment.
In time, the name Yao Bikuni became a whispered legend among mortals - a warning to those who would seek power without considering its cost. Her beauty, once a symbol of heavenly grace, became synonymous with vengeful justice, and her potion, the very thing she had once crafted with care, became a tool of retribution.
The Eternal Twilight
It is said that to this day, Yao Bikuni still roams the world, her celestial robes trailing behind her like clouds of dusk. Her face is as beautiful as it ever was, but her eyes, once filled with compassion, now gleam with the cold light of the stars. She offers the Potion of Eternal Twilight to those who seek it, but all who drink it without true love in their hearts are cursed to live forever in despair, their dreams turned to ash.
And so the myth of Yao Bikuni, the celestial Tennin who loved a mortal prince, became a cautionary tale - a reminder that the price of immortality is far greater than any can bear, and that the heart, once betrayed, can become a wellspring of vengeance that spans all eternity.