Shen attempted the Nirvana breakthrough on a Sunday morning, alone in the restricted training ground, with Frostfang beside him and a communication talisman linked to Zhang in case his body rejected the transition and someone needed to know where to find what was left.
He'd spent three weeks preparing. Memorizing fourth-stage protocols. Studying the Nirvana transition mechanics from the restricted library. Running energy simulations in his core, testing how Emperor's Art compressed energy responded to controlled destabilization. The simulations were imperfect, like testing a parachute by dropping it from a table. You learned something, but the real test happened at altitude.
The Nirvana breakthrough required three phases. Foundation dissolution, where the cultivator deliberately destroyed their Mortal-realm core. Reformation, where the destroyed core was rebuilt at a higher grade. Awakening, where the new core manifested unique properties based on the cultivator's technique and talent.
The thirty percent mortality rate came from the dissolution phase. Destroying your own spiritual core was like performing surgery on yourself without anesthesia. If the destruction was incomplete, the fragments destabilized and scattered, taking the meridians with them. If the destruction was too thorough, there was nothing left to rebuild from. The margin between too little and too much was measured in fractions of a second and fractions of a percent.
The Emperor's Art added a variable. Shen's core wasn't normal Mortal Nine energy. It was third-stage compressed energy, dense enough to match early Nirvana, packed into a reservoir that was physically smaller than a normal Mortal Nine's core but energetically equivalent to something much larger. Destroying this core would release compressed energy at a rate that normal dissolution couldn't handle. It would be like cracking a pressure vessel instead of opening a tap.
The solution was fourth-stage governance. If Shen could convert his core energy to fourth-stage before the dissolution, the self-governing energy would maintain its density even after the core structure was destroyed. The energy wouldn't scatter because it didn't need external containment to stay compressed. It governed itself.
Convert to fourth-stage. Dissolve the core. Let the self-governing energy float in the empty space where the core used to be. Then rebuild around it, using the fourth-stage energy as the foundation for a Nirvana-realm core that was denser than anything a normal breakthrough could produce.
Theory. Clean on paper. The practice was about to get messy.
Shen sat cross-legged on the spiritual stone floor. Closed his eyes. Emperor's Art breathing pattern: four in, hold for seven, out for eight. The rhythm was a metronome he'd been following for months. It centered him. Brought his focus to the compressed energy in his core, the sphere of third-stage power sitting behind his navel, rotating slowly, governed by his continuous attention.
Fourth-stage conversion. Step one: identify a single filament of third-stage energy. Shen isolated a thread at the core's surface, a strand of compressed spiritual power the thickness of a hair.
Step two: release the external compression. Let the filament expand from third-stage back to its natural density. This was the dangerous part. Releasing compression was like letting go of a spring. The energy wanted to scatter. Shen held the filament's expansion with precise Emperor's Art control, letting it decompress slowly, maintaining its structure while reducing the external pressure to zero.
Step three: implant the self-governance protocol. The Emperor's Art's fourth-stage instructions described this as "teaching the energy to remember its shape." Shen applied the protocol to the decompressed filament, a sequence of spiritual energy patterns that functioned like programming instructions. The filament, now uncompressed and held in place by nothing but Shen's control, absorbed the protocol.
Step four: release.
He let go. The filament, uncompressed and untethered, should have scattered instantly. Instead, it held. The self-governance protocol activated. The filament compressed itself, tightening back to third-stage density and then beyond, reaching a compression ratio that Shen's external control couldn't achieve because the energy was working from the inside, applying pressure at the molecular level where external hands couldn't reach.
Fourth-stage. One filament. Denser than third-stage by a factor of two. Self-sustaining. No external input required.
Shen opened his eyes. The single fourth-stage filament sat in his core like a diamond in a pile of quartz. Different quality. Different class. He could feel the difference in the way it interacted with the surrounding third-stage energy. Smoother. More stable. Running on its own power like a machine that had been wound and set free.
He had the proof of concept. Now he needed to convert the entire core. Thousands of filaments, each one requiring the same four-step process. At one filament per breath cycle, the full conversion would take hours.
He started. One breath, one filament. One breath, one filament. The process was mechanical once established, the same sequence repeated with variations so small they were invisible to anyone without the Emperor's Art's precision tools. Shen's body settled into the rhythm the way a factory settles into production, each cycle identical, each output consistent.
Two hours. Forty percent converted. His body was soaked with sweat from the concentration effort. The core was a mosaic of fourth-stage and third-stage energy, the two types coexisting in the same space, the fourth-stage filaments quietly outperforming their neighbors.
Four hours. Seventy percent. His spiritual reserves were running on fumes. The conversion didn't cost energy in the traditional sense, but the concentration required to hold each filament through its vulnerability window drained his mental reserves. The foreign memories, usually manageable during waking hours, pressed against his focus. Pei Longshan's hammer. The glass-blower's breath. He pushed them back. Named himself. Continued.
Six hours. Ninety-five percent. His hands were shaking. His nose had bled twice. The golden mark on his wrist pulsed steadily, a heartbeat of fortune that may or may not have been the reason none of the conversions had failed. Five hundred filaments converted without a single scatter event. The statistics said he should have lost at least ten. He'd lost zero.
Seven hours and twelve minutes. One hundred percent. The last filament compressed itself and settled into the core.
Shen's entire spiritual energy reservoir was now fourth-stage. Self-governing. Permanently compressed at a density that no Mortal Nine cultivator in history had achieved. His effective output, which had matched early Nirvana at third-stage, now matched mid-Nirvana. At Mortal Nine.
The dissolution was next.
---
There was no ceremony to it. No gathering of power, no dramatic build-up. One moment Shen was sitting with a complete, fourth-stage Mortal Nine core. The next, he targeted the core's structural framework, the spiritual scaffolding that defined its shape and boundaries, and dissolved it.
The core collapsed. Not violently. Not explosively. The structure dissolved like sugar in water, the boundaries between inside and outside disappearing. Shen's spiritual energy, all of it, was suddenly floating in the empty space behind his navel, untethered, unshaped, free.
And it held.
Fourth-stage energy, self-governing, needed no container. The filaments maintained their compression through internal protocols, each one a tiny machine operating independently, holding its shape because it had been taught to hold its shape. The dissolution released the energy from its Mortal-realm structure, and the energy didn't care. It kept running.
The mortality window was here. The thirty percent kill zone. The moment when a dissolving cultivator had no core, no structure, no safety net, and the energy either reorganized or didn't.
Shen rebuilt.
The Emperor's Art's protocols for the Reformation phase were different from standard technique. Normal Nirvana reformation involved gathering scattered energy and compressing it into a new shape. Shen's energy wasn't scattered. It was already compressed. All he needed to do was provide it with a new structure, a Nirvana-realm framework that the fourth-stage energy could fill.
He built the framework from the inside out. The core's center first, the densest point, where the spiritual energy pressure was highest. Then outward, layer by layer, each ring of the new core calibrated to the fourth-stage energy's specific density and rotation speed. The framework was based on the Emperor's Art's specifications for a Nirvana-realm practitioner, modified for the unprecedented density that fourth-stage compression provided.
The new core solidified. Clicked into place. The energy settled into its new home, and the Nirvana-realm structure locked around it with the finality of a door closing.
Awakening. The third phase. The new core manifested its unique property.
Shen opened his eyes. The training ground was different. The spiritual stone floor, which had always been a flat gray surface, now showed its internal structure. Crystal lattices, energy flows, the formation circuitry embedded in the stone by the builders who'd laid it decades ago. He could see through the surface to the mechanisms underneath. Not with Blueprint Sight. With his naked eyes.
His new Nirvana core's unique property was an extension of the Remnant Eye. Permanent spiritual perception, baseline and passive, allowing him to see spiritual energy structures without activating the Remnant Eye. Blueprint Sight was now an active enhancement on top of an already enhanced baseline. His diagnostic ability, which had required deliberate activation and energy expenditure, was now partially always-on.
Nirvana Realm One. Emperor's Art fourth-stage compressed energy. Effective output: Nirvana Three equivalent, minimum. With active compression, possibly higher. SSS talent and the Golden Dragon's fortune overlay on top.
He was still at the bottom of the Nirvana Realm. Still weaker than most of his classmates in raw cultivation level. But the quality gap had closed. At Nirvana One with fourth-stage compression, he was playing the same game as everyone else, just with smaller cards that were each worth more.
The communication talisman buzzed. Zhang, checking in.
"I'm alive," Shen said.
"Your vital signs dropped to undetectable for forty-three seconds during the dissolution phase. My instruments registered you as dead for nearly a minute. — HAND ME THAT HEART RATE CHART — I was composing my condolence speech to your mother."
"Save it. I might still need it for the pill."
"Your sense of humor has not improved with the breakthrough."
"It wasn't a joke."
Zhang was quiet for two seconds. Then: "The Origin Grass is at twenty-two centimeters. Leaf seven is forming. Six weeks to maturity."
Six weeks. Shen stood up. His new Nirvana-realm body moved differently, faster, stronger, the spiritual energy integration into muscle and bone immediate and noticeable. The world looked different through permanently enhanced spiritual perception. Richer in detail, denser in information.
He picked up Frostfang. The sword's cold aura responded to his increased cultivation, expanding to a six-meter radius. The ice element was sharper, the temperature drop more severe. The synergy between the Emperor's Art's compressed energy and Frostfang's ice was tighter than before, the sword reading his intentions through the denser spiritual connection.
Six weeks. The Origin Grass would mature. Zhang would attempt the pill. His father would live or die on the outcome.
And Shen Raku, the boy who had woken up in his old room with the memory of his death and a rusty sword under his bed, had just crossed the threshold that had killed him the first time around.
He was Nirvana now. And this time, he intended to survive.
