The Third Division rarely sought the spotlight, yet every mission they undertook carried quiet significance. Seijirou had been in the squad long enough now to feel the weight of that responsibility.
But today's assignment was different, unlike anything he'd done before.
The mission's purpose was simple, at least on the surface: investigate strange occurrences in the outer districts of Rukongai.
Several reports had come in, detailing bizarre spiritual disturbances that defied easy explanation. Unnatural mists had been appearing, accompanied by a rapid drain of spiritual energy from anyone who entered them.
Even experienced Soul Reapers had been affected, weakened in ways they couldn't understand.
"Seijirou," the senior officer briefing him had said, his tone calm but with an edge of urgency, "you're our best strategist. I want you to lead this mission. Assess the situation, eliminate any threat if possible, and get our men back safely. We'll need your analytical mind out there."
Seijirou had nodded, concealing the surge of anticipation in his chest. He'd been training, waiting, for a moment like this—a chance to prove himself not just in theory, but in the real world where his decisions would have lasting consequences.
He was given a small team, three other members from the Third Division, each of them skilled but new to field missions.
As they gathered near the division barracks before setting off, Seijirou studied his team closely.
There was Shinji, a broad-shouldered fighter known for his defensive skills; Akira, a quick and agile Shinigami with a knack for scouting; and Haruto, an experienced medic with a calm demeanor.
"Listen up," Seijirou said, his tone steady but firm. "Our mission is to investigate and report back on the disturbances in the 78th district of Rukongai. Our priority is the safety of the residents and our team. If we encounter anything we can't handle, we retreat and regroup. Understood?"
They nodded, each expression serious, eyes filled with respect and trust. Seijirou felt the weight of their reliance on him, and it only strengthened his resolve.
The journey to the 78th district was uneventful at first, the quiet rustle of leaves and distant chatter of Rukongai residents accompanying them as they moved through the twisting paths and dense forests.
But as they approached their destination, an eerie stillness settled over the area. Birds no longer chirped, and even the wind seemed to have died down, leaving a palpable, uncomfortable silence.
Akira, their scout, was the first to notice something amiss.
"There's something… unnatural about this place," he muttered, his sharp gaze scanning the surroundings.
Seijirou nodded, sensing it as well. There was a heaviness in the air, as if the spiritual energy around them had been somehow condensed or warped.
"Stay alert. We'll advance cautiously."
They moved deeper into the district, their footsteps careful, every sense heightened. The fog was waiting for them, thick and unnatural, obscuring their vision.
Seijirou signaled for the team to halt as they reached the edge of the mist, each of them tensing instinctively.
"Haruto," Seijirou said, gesturing to the medic, "what can you sense about this fog? Is there any sign of poison or other harmful properties?"
Haruto stepped forward, reaching a hand into the mist with practiced caution. He closed his eyes, concentrating on the energy that swirled around them.
After a moment, he shook his head. "There's no physical poison… but there's something else. This mist is draining spiritual energy. It's slow, but anyone who spends too long in there could be severely weakened."
Seijirou frowned, weighing their options. They needed to investigate, but charging into the mist would put everyone at risk. He could already feel a slight pull on his energy just standing near it.
"We'll move in pairs," he decided. "Shinji, you'll come with me. Akira, stay close to Haruto and keep an eye on the perimeter. If anything happens, fall back immediately and wait for backup."
Shinji nodded, tightening his grip on his zanpakuto. He was ready, his stance steady, even as a flicker of nervousness crossed his face.
"Stay close," Seijirou murmured as he led the way into the mist, Shinji following just a step behind.
The fog closed in around them, thick and almost suffocating. It muted every sound, as if they were walking underwater, their footsteps disappearing into the thick silence.
A few steps in, and Seijirou could already feel the slow drain on his energy, a subtle pull that grew stronger with every movement.
It was disorienting, making his steps feel heavy, his thoughts slightly dulled. But he pushed through it, focusing on the mission, on the objective that lay somewhere within the mist.
As they moved deeper, a figure appeared in the fog—a faint silhouette just barely visible. Seijirou raised a hand, signaling for Shinji to halt.
He squinted, trying to make out the figure's details, but it remained elusive, a dark shape shifting in and out of view.
"Stay back," Seijirou whispered, his grip on his own zanpakuto tightening. He stepped forward cautiously, assessing the situation.
The figure moved closer, and as it did, Seijirou realized with a start that it was no Hollow. It was a person, or at least, it looked like one.
The figure stepped fully into view, revealing a gaunt man dressed in tattered robes, his eyes vacant and unfocused.
His skin was pale, almost translucent, and there was an unnatural aura around him, a hollow emptiness that made Seijirou's skin crawl.
"Who… who are you?" Seijirou called out, his voice steady but cautious.
The man didn't respond, only staring at them with blank, unseeing eyes. Then, without warning, he lunged forward, moving with surprising speed despite his frail appearance.
Seijirou reacted instantly, sidestepping and bringing his zanpakuto up defensively. The man's movements were erratic, almost like a puppet on strings, his limbs jerking and twisting as he attacked.
Shinji moved to assist, but Seijirou held up a hand. "Stay back! I'll handle this."
He focused his energy, feeling the weight of his zanpakuto as he parried the man's attacks, each strike sharp and controlled.
But as he fought, he noticed something odd—the man's movements were repetitive, almost mechanical. It was as if he were trapped in a loop, endlessly repeating the same attack patterns without variation.
A chill ran down Seijirou's spine as he realized what he was facing. This wasn't a man, not anymore. Whatever he had been, he was now a hollow shell, drained of his soul, his spirit consumed by the very mist that surrounded them.
With a final, decisive strike, Seijirou brought his zanpakuto down, cutting through the figure and dispelling whatever remained of his tortured existence.
The man fell to the ground, his body disintegrating into spiritual particles that drifted away on the wind.
Shinji exhaled, a mix of relief and unease on his face. "What… what was that?"
Seijirou sheathed his zanpakuto, his gaze darkening as he surveyed the area. "I don't know. But whatever it was, this mist is far more dangerous than we realized. It's not just draining energy—it's consuming souls, hollowing people out until there's nothing left."
He turned back toward the mist, his mind racing with possibilities. This was no ordinary disturbance. Someone, or something, had created this phenomenon, and it was targeting the residents of Rukongai.
"We need to find the source of this mist," Seijirou said, determination hardening his voice. "If we don't, more lives will be lost."
He motioned for Shinji to follow as they pressed on, their movements cautious but resolute.
Every step took them deeper into the heart of the disturbance, the mist growing thicker, more oppressive, as they neared what Seijirou could only assume was the source.
After what felt like an eternity, they reached a clearing within the fog, a small, open space where the mist seemed to swirl in a concentrated vortex.
At the center of the vortex stood a twisted, gnarled tree, its roots stretching into the ground like dark, grasping fingers.
The air around it was thick with malevolent energy, a palpable aura of corruption that made Seijirou's skin prickle.
"This is it," he murmured, his gaze locked on the tree. "This is where the mist is coming from."
Shinji nodded, his expression grim. "How do we stop it?"
Seijirou took a deep breath, focusing his energy as he raised his zanpakuto. "We cut off its source. Stand back, and be ready for anything."
He channeled his spiritual energy into his blade, feeling its power surge through him as he prepared to strike.
With a swift, decisive motion, he brought his zanpakuto down, slicing through the roots of the tree in a single, powerful arc.
The mist reacted instantly, swirling around them in a frenzy as the tree began to wither, its bark cracking and splitting as dark energy seeped from its core.
The air filled with an otherworldly wail, a sound that echoed through the clearing like a mournful cry. The mist twisted and thrashed as if in agony, the vortex losing its structure and dissipating slowly into the air.
Seijirou and Shinji stood their ground, watching as the tree finally collapsed in on itself, crumbling to dust that was swept away in the dying gusts of fog.
As the mist cleared, the oppressive weight in the air lifted, and the eerie silence that had pervaded the area was replaced by a soft, natural stillness.
The spiritual energy around them began to feel normal again, and Seijirou exhaled, feeling the tension drain from his shoulders.
"It's over," he said quietly, though his voice held a note of caution. "At least… it seems like it."
Shinji looked around, nodding in relief. "I don't feel that strange pull anymore. Whatever was causing it must have been tied to that tree."
They took a few moments to survey the now-quiet clearing, ensuring there were no lingering threats. The place felt empty, like a wound that was beginning to heal.
Seijirou could sense that the souls once trapped here were finally at peace, their energy dispersing into the natural flow of the Spirit World.
"Seijirou," Shinji said, breaking the silence, "you handled that flawlessly. I'm not sure any of us would have figured out the cause of the mist without your insight."
Seijirou gave him a slight nod of acknowledgment, though his expression remained thoughtful. "This was more than a simple spiritual disturbance. Someone or something placed that tree here deliberately. This level of dark energy manipulation isn't natural. We need to report this to our superiors immediately."
Shinji's brow furrowed. "You think this was… sabotage? Someone intentionally targeting this district?"
Seijirou sheathed his zanpakuto, his eyes narrowing as he surveyed the remains of the twisted tree. "It's possible. Whoever or whatever was behind this had a specific intent—to drain spiritual energy and corrupt those who came into contact with it. This was more than just a coincidence."
They began their journey back, moving swiftly but carefully through the outer districts. The silence around them felt heavier now, as if the darkness they had encountered still lingered in the shadows.
Yet Seijirou was resolute; he had completed the mission and protected his team, but he couldn't shake the feeling that this incident was just the beginning of something larger.
Upon returning to the barracks, Seijirou immediately requested a debriefing with his commanding officer.
They explained the events in full, detailing the nature of the mist, the hollowed figure they had encountered, and the corrupted tree at the center of it all.
The officer listened intently, his expression grave as Seijirou finished his report.
"This is deeply concerning," the officer said, tapping his fingers thoughtfully against the table. "If what you're saying is accurate, then we may have a new threat to contend with. One that operates in the shadows, corrupting without leaving obvious traces."
He looked at Seijirou with respect, nodding. "You handled this mission well, Kageyama. We may not have all the answers yet, but you've bought us valuable time to investigate further. We'll need to coordinate with the other divisions, possibly even the Kido Corps, to uncover the true nature of this threat."
Seijirou nodded, his expression serious. "I'll be ready, sir. Whatever this is, I want to ensure that we're prepared."
The officer's gaze softened, a faint smile crossing his face. "You're an asset to the Third Division, Seijirou. Keep up the good work, and I have no doubt you'll continue to make a difference."
As he left the debriefing room, Seijirou returned to his cold and indifferent look, his brows furrowed in thought.
Something was up with that mist. And he couldn't help but think that somehow, Aizen was behind it.