As Shen Yu finally finished his release, he looked down to find that Yilan had drifted into a deep, exhausted unconsciousness, her body completely spent from the overwhelming intensity of their union.

Though the fire in his blood had not fully cooled, his length still turgid and demanding, he felt no desire to continue.

To him, she was not a mere vessel, the pleasure was in her response, her gasps, and the way her eyes sought his. Taking her while she was lost to sleep held no appeal for a man who sought to own her soul as much as her flesh.

With a slow, careful withdrawal that left Yilan stirring only slightly, he moved his hand to her abdomen. He channeled a thread of Qi into her dantian to inspect the damage.

A look of grim satisfaction crossed his face, nearly 34% of her shattered Golden Core had been meticulously mended, the fractures now humming with a faint, new vitality.

Satisfied, Shen Yu settled into a cross-legged position beside her, closing his eyes to begin the true work. He started to absorb the residual Yin Qi still lingering in the air and within his own channels. His cultivation began to climb with a violent, terrifying speed.

95%... 96%... 97%... 98%...

As he hit the 99% mark, the atmosphere in the pavilion shifted. The air grew heavy, static-charged and suffocating. Suddenly, his control snapped. His Qi began to behave chaotically, swirling with a "chaotic" turbulence that defied the laws of the cultivation world.

It began to condense to an impossible degree, shrinking and hardening into a needle-point of pure power that even the forbidden techniques of his past life couldn’t tame.

Panic flared for a heartbeat before he forced himself into a state of Stoic detachment. Instead of fighting the chaos, he let go.

He stopped trying to force the Qi into the standard Foundation Establishment patterns and simply watched its flow. Slowly, a new, hidden pattern emerged, one that felt ancient and forbidden.

As he followed this new path, he felt his consciousness collide with an invisible barrier. It wasn’t the usual wall between realms, this was a "Forbidden Barrier," a celestial seal designed to keep mortals from sensing a hidden tier of existence.

It was as if he were walking into a dark, unknown territory that the heavens themselves had tried to delete from history.

As he pushed his condensed Qi against this barrier, a bone-chilling dread washed over him. The very fabric of the world seemed to groan, and a weight like the gaze of a thousand gods pressed down on his shoulders. The Heavens were pushing back, a silent, celestial warning daring him to take that final step.

It was a sensation he knew all too well, a primal, bone-chilling dread that clawed at the edges of his soul. It was the exact same feeling he had experienced in his previous life during his ascension from the Golden Core to the Nascent Soul realm, the moment when the world itself seemed to hold its breath before the storm.

But as the air outside the pavilion began to crackle and the sweet scent of peach blossoms was choked out by the sharp, metallic tang of ozone, Shen Yu realized something was fundamentally wrong.

This was not the standard trial of a cultivator, the measured test of strength and will that accompanied a breakthrough to the Nascent Soul.

This was different. The sky didn’t feel like a teacher, it felt like an executioner. The pressure descending from the firmament felt like an erasure.

This was a Divine Punishment, a celestial strike meant to ruthlessly incinerate anyone arrogant enough to lay hands on the forbidden secrets he had just unearthed. The heavens were not testing him, they were trying to delete him.

As he gritted his teeth, bracing for the weight of the universe to crush his spine, a flickering glow cut through the darkness of his closed eyelids.

To answer his silent, desperate confusion, the black system screen materialized in the air before him, its cold, digital light clashing with the ancient, terrifying power of the gathering storm.

The screen flickered with a violent, blood-red hue unlike the usual neon pink hue, pulsing in sync with the thunder that now rattled the jade foundations of the pavilion. Unlike its usual helpful interface, the text scrolled across the screen with a jagged, urgent intensity.

[WARNING: TABOO ASCENSION DETECTED]

"What the hell is that?" Shen Yu hissed, his skin crawling as a cold, predatory pressure from the firmament locked onto his position.

[Host has triggered a ’One in a Billion’ anomaly.]

[Host has breached the Forbidden Threshold.]

"Forbidden? Speak clearly!" he commanded, his teeth gritted against the sheer weight of the atmosphere.

[Every known realm consists of 9 Sub-Stages. However, a ’Forbidden Stage’ exists beyond the limit, the 10th Stage: The Stage of Perfection.]

[While the standard 9th Stage represents the "limit" of what a human body is supposed to hold, Perfection is the act of shattering that limit and accessing a hidden tier of existence the Heavens tried to lock away.]

The screen flashed a blinding white, displaying a complex diagram of his own spiraling meridians.

[By touching Perfection in Qi Condensation, you have reached the absolute limit of mortal capacity. Should you advance after this, your foundation will be 10 to 20 times more potent than a standard 1st-Stage Foundation Establishment cultivator.]

[You will not merely be stronger, you will be a different species of power.]

The system screen flared with a dark, pulsating light, the text flickering like dying embers as it provided the cold truth of his situation.

[Accessing the ’Forbidden Barrier’ was made possible only through the Primordial Yin-Yang Technique of the Primal Desire Immortal. Only a handful of techniques in existence possess the keys to unlock the 10th Stage.]

"Then why the fuck didn’t I know anything about this?" Shen Yu snarled, his eyes darting to the swirling vortex of purple clouds above.

[As stated, this is a ’One in a Billion’ anomaly. Only those who possess the specific technique, the perfect catalyst, and a monstrous willpower can even sense the barrier.]

[To speak of Perfection to the unworthy is a death sentence; the mere vibration of the words can draw the gaze of the Heavens. You were not ready, until now.]

Shen Yu forced his racing heart to slow, the Stoic discipline of his soul overriding the primal fear. He assessed the pressure outside, the air was thick enough to crush a lesser man’s lungs.

"Fine. It’s here. What do I do now?"