The integration happened in layers, each one deeper and more profound than the last.
First came the memories—not complete experiences, but flashes of understanding that settled into Jin Ho's consciousness like pieces of a vast puzzle clicking into place. He suddenly knew the precise angle needed to channel blood energy for maximum efficiency, understood how lightning could be guided through dimensional barriers, felt the mathematical elegance of time manipulation equations that had taken the Ice Soul Demon Emperor centuries to perfect.
『Easy,』 the Blood Heaven Great Emperor's voice murmured as Jin Ho's awareness expanded. 『Don't try to process everything at once. Let it flow naturally.』
But it was impossible not to be overwhelmed. Three thousand years of accumulated knowledge, battle experience, and cosmic understanding were being carefully woven into his mental framework. Jin Ho could feel his thinking processes becoming more efficient, his reaction times sharpening, his intuitive grasp of complex energy interactions reaching levels he'd never imagined possible.
『The theoretical maximum output for a Trinity Unity formation is approximately 847% of baseline power,』 the Ice Soul Demon Emperor's analytical capabilities informed him, the calculation appearing in his mind as clearly as if he'd worked it out himself. 『However, practical limitations typically reduce this to roughly 600-700% effectiveness.』
『Which is still more than enough to kick some serious void-corrupted butt!』 the Thunder Lightning King added enthusiastically.
The integration process felt like standing in a gentle storm of pure knowledge and power. Jin Ho's consciousness expanded to accommodate not just the demon lords' abilities, but their perspectives as well. He could feel the Blood Heaven Great Emperor's deep satisfaction at being able to properly guide and protect again, the Thunder Lightning King's barely contained excitement at the prospect of upcoming battles, and the Ice Soul Demon Emperor's analytical pleasure at achieving optimal power distribution.
『Integration at sixty-seven percent and rising,』 the Ice Soul Demon Emperor reported. 『Personality matrix remains stable. No signs of identity displacement or cognitive overload.』
『Because Jin Ho is tougher than he looks,』 the Blood Heaven Great Emperor said with obvious pride. 『Most mortals would have shattered under the pressure of hosting even one of us. But he's managed three of us with remarkable grace.』
"It doesn't feel overwhelming anymore," Jin Ho realized with surprise. "It feels... natural. Like this is how it was always supposed to be."
『Because it is,』 the Thunder Lightning King said simply. 『We were never meant to be completely separate. The Supreme Demon God's fragmentation was necessary to prevent the Void Overlord from corrupting all of us at once, but it was always intended to be temporary.』
『And you,』 the Ice Soul Demon Emperor added, 『are the key that allows us to reunite safely. Your mortal consciousness serves as a stabilizing influence, preventing us from losing our individual identities while still achieving true unity.』
As the integration deepened, Jin Ho began to feel the changes manifesting in his physical body as well. He opened his eyes—when had he closed them?—and found himself back at the entrance to Gangcheonhyeol Cave. But everything looked different now.
His enhanced perception could see the dimensional energy flowing through the air like visible streams of light. The void corruption appeared as dark, oily stains spreading across reality itself, and he could trace its source directly to the dimensional rift overhead. But more importantly, he could see the solution—the precise points where purifying energy would need to be applied to begin the healing process.
Jin Ho raised his right hand, and immediately three distinct types of energy began flowing through him simultaneously. Blood energy, lightning, and ice power wove together in a complex pattern that was both beautiful and terrifying. The air around his hand shimmered with heat and cold at the same time, crackling with electricity while emanating the deep crimson glow of life force.
"This is incredible," he breathed, watching the tricolor energy dance around his fingers. "I can feel how they're supposed to work together."
『Show off a little,』 the Thunder Lightning King encouraged. 『We've been waiting three thousand years to see Trinity Unity in action!』
Jin Ho grinned and gestured toward a large boulder about fifty feet away. Instead of choosing one type of attack, he let his instincts—now enhanced by three sets of ancient battle experience—guide him.
The technique that emerged was unlike anything he'd used before. Lightning struck the boulder from above, but instead of simply destroying it, the electrical energy created a perfect network of conductive pathways. Blood energy followed those pathways, saturating the stone with life force, and then ice power froze everything in place for precisely 0.3 seconds—just long enough for the internal pressure to build to exactly the right level.
The boulder didn't explode. It transformed, restructuring itself at the molecular level into a perfect sphere of crystallized energy that hung in the air for a moment before gently floating down to settle on the ground, glowing softly with all three colors.
『Excellent form,』 the Blood Heaven Great Emperor approved. 『Though perhaps a bit excessive for a simple demonstration.』
『Are you kidding? That was awesome!』 the Thunder Lightning King protested. 『Did you see how perfectly the timing worked? That's the kind of precision that takes decades to master!』
『The energy efficiency was quite satisfactory,』 the Ice Soul Demon Emperor added. 『Minimal waste, maximum effect, and the transformation was both aesthetically pleasing and functionally sound.』
Jin Ho stared at the glowing sphere, then at his hand, then back at the sphere. "I... how did I know how to do that?"
『Integration at eighty-five percent,』 the Ice Soul Demon Emperor reported. 『Your combat instincts now incorporate our accumulated experience. What feels like intuition to you is actually the synthesis of three millennia of battle knowledge.』
The sensation was intoxicating. Jin Ho could feel power flowing through him like never before—not just raw strength, but refined, purposeful energy that responded to his will with perfect precision. Every movement felt optimal, every breath maximally efficient, every heartbeat perfectly timed to enhance his energy circulation.
But underneath the exhilaration, he could also feel something else: responsibility. This wasn't just personal power—it was the accumulated strength of three demon lords, entrusted to him for the purpose of saving the universe. The weight of that trust was both humbling and motivating.
『The initial integration is complete,』 the Blood Heaven Great Emperor announced. 『But this is still only the foundation, Jin Ho. What you're experiencing now is Trinity Unity at baseline power. When we enter our home dimensions and the amplification effects take hold...』
"Five times stronger in the Blood Demon Realm," Jin Ho finished, the knowledge now part of his own understanding. "Three times in the Thunder and Ice Soul Realms."
『Precisely. And in those amplified states, we'll have access to dimensional ultimate techniques—attacks that can affect entire realms simultaneously.』
The implications were staggering. If he was already this powerful at baseline Trinity Unity, what would five times this strength feel like? What could he accomplish with power on that scale?
『One step at a time,』 the Ice Soul Demon Emperor cautioned, apparently sensing his thoughts. 『Amplified power comes with amplified risks. We must ensure perfect control at this level before attempting dimensional enhancement.』
『Plus,』 the Thunder Lightning King added with characteristic optimism, 『we still need to complete the weapon fusion! Three powers means we should have one weapon that can channel all of them simultaneously!』
Jin Ho nodded, already feeling the pull of his various weapons. The Blood Heaven Sword, the Thunder God Spear, and now... he could sense a third weapon forming in his consciousness, crystallizing from the Ice Soul Demon Emperor's power.
"The Ice Soul Axe," he said, the name coming to him naturally.
『Indeed. And when all three are properly fused...』 the Blood Heaven Great Emperor's voice carried anticipation. 『You'll wield a weapon capable of channeling Trinity Unity at its full potential.』
As if responding to his thoughts, Jin Ho felt the familiar weight of his weapons manifesting in the physical world. This was going to be interesting.