In the expanse of his spirit sea was the beginning of his strength.
In the expanse of his spirit sea, Sen stood battered by a lightning lion and two ferocious thunder strikes crashing at him. His own soul battered by the three creatures, the other two versions of Sen were too battered to get up. Sen whispered.
"Goodness knows how I'll deal with them when my spirits can't deal with them."
Just then Sen decided to strike himself with his own thunder, allowing him to be electrocuted. He had done this every time but this time it was too far, too intense, too dangerous. The pain surged through every fiber of his being, sharper and more unrelenting than before. It was a deliberate choice, a desperate gamble born from the realization that his usual methods were no longer enough. The electricity coursed wildly inside him, lighting up his spirit sea like a violent storm, illuminating the vast inner world that had become his battlefield.
He pushed through the pain and tried to find out if he could now control his spirit essence. The creature wanted to finish him, but the storm seemed to be a force to be reckoned with. The spirit sea water vibrated as if it had been touched by something far greater than itself. Then it started moving. Sen could feel the spirit essence pass through his veins. He then controlled it to his feet. He was still enshrouded in lightning as he struck the ground, and the ground vibrated through the impact. It erupted from the soil and it tingled on him like countless tiny needles. Sen felt his flow. Energy on him but he had to learn a lesson in combat that not all fighting was about sacrifice.
He had learned a lesson in combat that not all fighting was about sacrifice.
The lightning lion roared again, its form crackling with raw, untamed power that shook the very fabric of his spirit sea. The two thunder strikes followed, slamming into the space around him with deafening force, sending shockwaves that rippled across the watery expanse. Sen's body — or rather, the manifestation of his soul within this inner realm — trembled under the assault. Every strike felt personal, as if the creatures were not just attacking his power, but testing the very limits of his will.
Yet even in this moment of desperation, Sen refused to yield completely. He had come too far, endured too much, to let these manifestations of his own thunder element overwhelm him. The other two versions of himself lay motionless nearby, their forms battered and broken, unable to rise again. They were echoes of his past attempts, remnants of earlier struggles within this same spirit sea, and seeing them only fueled his determination.
He whispered the words again, almost to himself, as if speaking them aloud would make the burden feel a little lighter.
"Goodness knows how I'll deal with them when my spirits can't deal with them."
The admission carried weight. His spirits, the very entities he had claimed and now carried within him, were struggling. The sin that burned inside him from the flaw made everything heavier, more difficult. Each spirit he dominated added to the torment, and right now that torment was threatening to pull him under. But he could not stop. He would not stop. The lightning domain demanded growth, and growth always came with pain.
Then came the decision.
Just then Sen decided to strike himself with his own thunder, allowing him to be electrocuted. He had done this every time but this time it was too far. The lightning he summoned from within struck his own form with brutal precision. Electricity flooded his spirit sea, arcing through his veins, his core, every part of his manifested soul. The pain was excruciating, a white-hot fire that threatened to tear him apart from the inside. His vision blurred within the spirit sea, the watery expanse around him flashing with blinding light. He could feel his own power turning against him, yet he held on, forcing it to serve a greater purpose.
He pushed through the pain and tried to find out if he could now control his spirit essence more completely than ever before. The creature — that massive lightning lion — wanted to finish him, lunging forward with jaws crackling with lethal energy. But the storm he had unleashed seemed to be a force to be reckoned with, pushing back against the lion's advance. The spirit sea water vibrated violently, as if it had been touched by something primordial, something far greater than the simple manifestations of thunder. Waves rose and crashed unnaturally, responding to the chaos he had invited into himself.
Then it started moving.
Sen could feel the spirit essence pass through his veins, flowing like liquid lightning, wild and untamed but slowly bending to his will. He then controlled it to his feet with fierce concentration. He was still enshrouded in lightning as he struck the ground hard. The impact sent a shockwave through the entire spirit sea. The ground — or what passed for ground in this inner realm — vibrated through the force of the blow. Energy erupted from the soil beneath him, shooting upward in crackling bolts that tingled across his skin like countless tiny needles, both painful and invigorating.
Sen felt his flow.
Energy surged on him, raw and powerful, wrapping around his form like a second skin. The lightning that had once threatened to consume him now seemed to obey him, at least for this fleeting moment. He could sense the shift, the subtle change in how the power moved within him. It was no longer just wild thunder — it was becoming something he could direct, something he could command.
But even in that moment of breakthrough, he had to learn a lesson in combat that not all fighting was about sacrifice.
The realization hit him as deeply as any physical blow. He had always thrown himself into pain, into self-inflicted torment, believing that enduring more would make him stronger. Striking himself with his own thunder had become a pattern, a desperate tactic born from necessity. Yet here, in the heart of his spirit sea, he understood that true mastery might not always demand such extreme self-harm. There were other paths — ways to control the lightning domain without constantly tearing himself apart. Sacrifice had its place, but it could not be the only way. Not if he wanted to survive the battles that waited for him outside this inner realm.
The lightning lion roared once more, but its charge seemed slightly slower now, as if sensing the change in Sen. The two thunder strikes still crackled threateningly, but the vibrations in the spirit sea had altered the battlefield. Sen stood there, breathing heavily within the expanse, his body still wrapped in lightning, his mind racing to process what he had just achieved.
He had pushed himself to the edge again, farther than before. The pain still lingered in echoes, a reminder of how close he had come to losing control completely. The other two versions of himself remained down, silent witnesses to his struggle. But Sen was still standing. Still fighting. Still learning.
The spirit essence continued to flow through him, more stable now, responding to his commands with less resistance. He could feel the potential growing — the lightning domain expanding its reach within him. The vapor body shapeshifting waited in the background, still unexplored, while the void needle remained hidden, its challenge tied to his future growth.
And through it all, the spirit sin burned quietly, a constant weight that would only grow heavier with every new spirit he claimed. He could not escape it. He could only endure it.
This battle in his spirit sea was not the end.
It was only another step.
Another painful, necessary step toward true strength.
The expanse around him continued to shift and crackle with energy, waiting to see what he would do next. Sen tightened his resolve, the faint spark of control he had gained burning brighter in his chest.
He was battered.
He was exhausted.
But he was not broken.
And in the lightning domain, that was enough to keep fighting.