It had taken decades for Xie Yingying to truly regain her hard-won control over the turbulent energies of her own spirit.
Their first attempt at intimate dual cultivation hadn't been proper at all. What was supposed to be a sacred and disciplined fusion of Taiyin and Taiyang, guided by the precise instructions of ancient scripture and spiritual resonance, had quickly dissolved into something far more desperate and human.
The moment Su Min's Solar Sovereign Body awakened, casting a golden-white glow against the cave walls, it was as if a massive floodgate broke open inside Xie Yingying. Her own Lunar Sovereign Physique had been completely overwhelmed by the sudden proximity of its counterpart. She felt herself being drowned in a radiance that made her very soul tremble at the slightest contact. In those early years, she had simply lost herself to the pull.
It wasn't just a single lapse in judgment, nor wasn't it for a fleeting moment.
For years, Xie Yingying's raw desire consumed her every thought during their sessions. Each time Su Min's brilliant white light returned, illuminating the darkness of their dwelling, Xie Yingying would chase that heat with a single-minded and territorial focus. She abandoned the necessary words and rituals, reaching out only for skin, for warmth, and for that celestial fire which scorched her yet never burned her away.
It wasn't the proper way of the path. There was no careful alignment of their respective meridians, no rhythmic chanting of ancient verses to steady the mind, and no symbolic breathing patterns to balance the flow. There were only their bodies, colliding and falling apart in the dim light, over and over again in a frantic cycle of biological need.
Su Min had let it happen without protest. Perhaps she had even welcomed the intensity of it, though she never said so aloud.
It had taken decades for Xie Yingying to slowly and painstakingly temper that primal craving. She had to learn how to mold that hunger into something focused, something sacred that could serve their cultivation rather than hinder it.
Only after that long struggle did they return to the true path outlined in their scriptures. They began once more with the very foundation, practicing the ancient methods of Lunar Sovereign and Solar Sovereign inheritance with a new level of discipline. When they finally enacted the correct rituals, their resonance shifted fundamentally, becoming a structural harmony rather than a chaotic collision.
The effects were immediate and overwhelming in their clarity. The moment their breaths aligned in the quiet of the cave, the Taiyin and Taiyang energies flowed into one another like ink and flame. They formed a perfect ring of balance that didn't scorch the meridians nor froze the blood.
In that instant, they glimpsed the Great Dao of Ten Thousand Laws.
It wasn't unlike anything Su Min had ever sensed before, even at the height of her rare Heavenly Dao Insight revelations. The scriptures hadn't exaggerated the rewards of such a union. The purest and most profound truths of the universe emerged in that moment. They were brief, transcendent, and painfully elusive, flickering like stars behind a veil of clouds. But that glimpse of enlightenment didn't come without a heavy cost to their physical forms.
The Solar Sovereign Body was still bound by the laws of time. Su Min's transformation always faded into a dull ember before they could fully enter the deeper stages of comprehension. They tried again and again, pushing the limits of their endurance. But by the third time they attempted to reach that peak, Su Min had halted them. Her face was strained, and her breath came in ragged hitches.
"If we force it, we risk permanent Dao injuries," she had said quietly. She reached up to wipe a sheen of sweat from her collarbone, her fingers trembling slightly. "Our foundations could shatter."
So they fell back on more accessible and sustainable methods. They practiced intimate dual cultivation without the specific pressure of their scripture, guided only by instinct and shared breath, much like countless other cultivator pairs throughout history.
Occasionally, they would use even more casual methods, merely sitting back-to-back on the cool stone floor or with their hands intertwined, allowing their spiritual currents to mingle peacefully. These methods offered a steady and reliable boost for their cultivation and helped maintain the deep, protective bond between them. Yet, none ever quite matched the raw, transcendent power of that first glimpse.
And Su Min couldn't forget the weight of that truth.
It was precisely that lingering memory which led her to propose a radical experiment one evening.
"I want to try exchanging essence blood," Su Min said. Her voice cut through the quiet hum of the cave, where the only other sound was the crackle of a small fire.
Xie Yingying paused in her work. Her pale fingers hovered above a small brazier as she stirred a simmering alchemical solution that smelled of crushed lotus and pine. The soft violet fumes cast gentle and shifting ripples of light across her impassive cheeks.
"That's forbidden in most orthodox sects," she said. She didn't look up, her tone measured and cautious. "It can create dangerous dependencies between two souls. It ties fates together in ways that are notoriously difficult to untangle."
Su Min poured a basin of clean, spirit-rich water into the cauldron beside her, the liquid splashing softly. Her voice remained calm, but it held a thread of unwavering intent that Xie Yingying recognized well. "And yet, the scriptures of our Sovereign Bodies never forbade it. They don't even mention the practice. It's a blank space in the record."
A long silence stretched between them, filled only by the rhythmic bubbling of the potion in the brazier.
Then, finally, Xie Yingying spoke again. Her tone was soft and almost resigned to the inevitable pull of Su Min's logic. "One drop only. From each of us."
They didn't make it a grand or ornate ritual. There were no complex chants to the heavens and no ceremonial offerings to the ancestors. There was only a single, sterile silver needle that caught the lamplight and the unmistakable, metallic tang of blood on their tongues.
When Su Min swallowed the single, dark drop of Xie Yingying's essence blood, something ancient and violently potent stirred within her core. Her meridians screamed in protest against the alien energy, then suddenly bloomed with a power she hadn't ever known. Taiyang energy, pure and blindingly brilliant, flared from her right hand. Taiyin energy, deep and bone-chillingly cool, emanated from her left. For the first time in her life, the two forces didn't conflict. They coexisted in a state of high-tension grace.
Her entire body pulsed with an impossible and raw energy. It wasn't a true, legendary Chaos Body, but it's something tantalizingly near that myth. Her attacks in this state shimmered with opposing forces, balancing perpetually at the very edge of detonation. Her combat aura shot far past what even her perfected Five Elements Holy Body couldn't ever hope to reach.
But the cost of such power was immediate and severe for the donor.
Xie Yingying slumped to the floor that night. Her breath was shallow and her face was ghostly pale in the shadows. The high-grade, fourth-tier restoration pills Su Min swiftly administered helped to dull the worst of the physical pain and fatigue, but the medicine couldn't fully hide the profound spiritual drain. Su Min never asked for another drop after that night. Not for decades.
Now, with only three uses of this fused state remaining before the essence blood would be fully metabolized by her system, they had a strict agreement to limit its use. Each activation would violently burn through Su Min's meridians, leaving her unable to re-enter that unstable state for at least three months of recovery. This incomplete Chaos Body wasn't a simple gift; it's a desperate weapon to be used only when all other options failed.
But Su Min didn't let the intervening years slip by idly.
Within the quiet and lamplit chambers of their cave dwelling, scrolls and jade slips littered the floor like fallen leaves. The two foundational scriptures—the Solar Sovereign and the Lunar Sovereign—had once seemed distant and even alien to one another. But as Su Min studied them side-by-side, day after day, she discovered something startling buried in the text.
Where the Solar technique taught expansion, the Lunar technique taught refinement.
Where the Solar script instructed the practitioner to burn away impurities with a purifying flame, the Lunar script taught them to isolate those impurities, freezing them for later dissolution.
And where the Solar Sovereign Body struck outward with blinding and aggressive light, the Lunar Sovereign Body pulled inward with the silent and inexorable force of a gravitational well.
"It isn't that they are opposites," Su Min murmured late one night. She traced the elegant characters of the twin scrolls laid out before her on the stone table. "They are two halves of a single, unified thought."
From this fundamental realization came new and shared techniques. These were abilities that neither scripture hadn't described explicitly, but which emerged naturally through their joint practice and shared insights.
One was the Twin Polar Karma Seal.
Together, they could seal away not only an opponent's cultivation level, but the very Laws and Daos they wielded. It didn't just suppress raw power; it removed the entire context that made that power meaningful in a fight. A profound sword technique without its supporting Sword Dao became just a simple, empty swing. A devastating lightning spell without its Law of Destruction wasn't little more than harmless heat and flickering light.
Even more remarkably, Su Min found she coul use a weaker version of this seal alone, but only when she was in her unstable and incomplete Chaos Body state.
All of this wasn't the result of years of dedicated research, not fleeting passion. It's born from a deep and intellectual connection between them, not mere physical lust.
And in the end, that's what made the bond feel truly sacred to them both.
Over the passing decades, they developed a comfortable and efficient rhythm that governed their lives.
In the secluded and quiet depths of the Golden Core Avenue, they would meditate for hours with their fingers linked together. They breathed in each other's Qi, learning the subtle cadence and the hidden depths of their combined energy.
They tested their new seals against specially crafted puppet enemies that Su Min had forged. They timed how long it took to destabilize various Laws and then timed how long it took to carefully restore those same Laws without causing permanent damage.
They measured how pure Yin and pure Yang could be fused simply, without the need for complex rituals. It's a clean and powerful blend of two complementary halves hurled outward as a single force.
"The finest ingredients require the simplest methods," Su Min said once. She was quoting an old mortal chef she had met long ago during her travels. She pressed her palm firmly to Xie Yingying's, and their energies began to swirl together in a familiar dance. "And we are nothing if not finely made."
Xie Yingying had laughed at that. It wasn't a mocking sound, but something soft and rare, a genuine note of amusement that warmed the cool air of the cave.
She didn't say that Su Min wasn't right.
She just said, her voice steady and sure, "Again."
And they began to fuse.