The chase did not last long.
At first, it looked playful — almost lighthearted.
Kazehime became wind, her form dissolving into spirals of wind that danced just ahead of Rumi's reach. She darted upward, then sideways, then suddenly behind, laughter echoing through the rushing currents.
Rumi followed.
Not with urgency.
Not with desperation.
She followed the way wind followed the land — adapting, adjusting, flowing.
Each step she took was guided not by calculation, but by intent. When Kazehime twisted upward, Rumi rose with her. When she scattered into a dozen threads of wind, Rumi did not chase every one — she chose a direction and committed to it.
The wind answered.
The distance between them shrank.
Kazehime felt it — the moment when the chase stopped being a test.
So this is it, she thought, smiling.
Rumi reached out.
Not to grab.
Not to restrain.
But to meet.
The winds converged.
For a brief instant, the world went silent.
Then—
Kazehime reformed before her, feet touching the ground, long hair lifting gently in an unseen breeze. There was no hostility in her stance. No resistance.
Only pride.
"I lose," Kazehime said simply.
Rumi blinked. "That was fast."
Kazehime laughed. "You finally stopped chasing answers. How could I keep running?"
She stepped closer, placing a hand over Rumi's chest — where her reiatsu pulsed, steady and unafraid.
"You chose to move forward," Kazehime said softly.
"Even without certainty."
"Even without perfection."
Her eyes softened.
"That is enough."
The wind stilled.
Then Kazehime leaned close, her lips near Rumi's ear.
"Listen carefully," she whispered.
"This is my name."
The world seemed to tilt.
The air trembled.
"Tenku no Kazehime." (Heaven's Wind Princess)
The words carved themselves into Rumi's soul.
Her breath caught.
Her hand moved on its own, fingers tightening around the hilt of her Zanpakutō.
"So that's it…" Rumi murmured.
She felt it — the weight of the name, not heavy, but vast. Like standing at the edge of an endless sky.
A laugh escaped her lips. Quiet. Free.
"Alright then," she said, voice steady.
She raised her blade.
"Bankai. Tenku no Kazehime."
The air collapsed inward.
A pressure unlike anything before surged outward from Rumi's position, not violent, not explosive, but overwhelming in its presence. The reishi around her twisted, compressed, and then began to flow.
The wind screamed.
High above the Thirteenth Division, clouds spiraled unnaturally, drawn into a widening vortex. The sky darkened as the atmosphere itself bent to her reiatsu.
A tornado formed, slow, immense, and silent at its core.
Across the division, Shinigami froze.
Unseated officers were forced to their knees, lungs burning as if the air itself had grown heavy. Third and fourth seats staggered, barely able to remain standing.
Even farther away, across Seireitei, captains paused mid-step.
"This pressure.."
"Is that a Bankai?"
At the center of it all, Rumi stood unmoving.
Wind gathered around her body like an invisible armor, not wildly, but deliberately. It wrapped around her arms, her legs, her torso, forming a translucent mantle of flowing reiatsu. Each breath she took caused the air to shift, respond, obey. With the wind armor, she felt like her speed would increase at least a few times than before, and the wind armor in her arms, and legs could level up her Hakuda and Zanjutsu to the next level in this state.
On the other hand, her Zanpakutō itself still looked… familiar. The blade had not changed shape or developed any flashy visual changes or power. Its surface gleamed more brilliantly now, intricate patterns more visible beneath the steel , like wind etched into metal.
But, Anyone watching might have thought it was still Shikai because of its size, if the surrounding weather change was ignored. They would be wrong, of course.
Rumi lifted the blade slightly.
To her surprise, the steel and blade dissolved with a thought.
Not shattered, more like unraveled.
The sword dispersed into countless threads of wind that spiraled outward, vanishing into the surrounding air.
So, it was the actual Bankai ability. Dissolving the blade into the wind.
Rumi raised her empty hand again and the wind condensed with a thought.
A blade then reformed in her grasp, which looked flawless, and humming with power.
And, reforming the blade from the wind.
Her eyes widened just a little.
"So this is it," she whispered.
"Wherever the wind goes… you go."
Kazehime's voice echoed around her, amused and proud.
I was never the blade, she said.
I was the wind.
Rumi smiled.
The tornado above roared louder.
Wind surged across the division, bending trees, rattling buildings, reshaping the weather in a wide radius. The sky itself seemed to acknowledge her presence.
Tenku no Kazehime had descended.
And though its power was still young, unrefined, and untamed, it was undeniable.
That a Bankai had been born.
----------
A little earlier,
The 13th Division headquarters had not known true quiet for days.
Patrol rotations overlapped, messengers came and went, and the air itself felt strained — as though the division grounds were holding their breath. The Hollow that had slaughtered Shinigami before vanishing had left more than corpses behind. It had left unease.
Kaien Shiba sat in front of his captain, as he finished his report. His voice was steady, but his posture betrayed tension.
"No activity since the encounter with Fujiwara," he said. "No sightings, no spiritual residue, no unusual fluctuations. It's as if it disappeared entirely."
Ukitake Jūshirō listened in silence, seated at the low table. His hands rested calmly in his lap, but his eyes were sharp.
"An intelligent Hollow capable of targeting Zanpakutō by contact wouldn't retreat without intention to come back," Ukitake said softly. "Especially after suffering that level of damage."
Kaien nodded. "Exactly. It lost most of its body. Tentacles gone. Core destabilized. If it fled, it's either recovering… or waiting."
He frowned. "And that worries me more."
Ukitake exhaled slowly.
"Yes," he said. "It does."
For a moment, neither of them spoke.
Then—
Ukitake's head tilted slightly.
Kaien felt it a heartbeat later.
The air shifted.
Not violently. Not explosively.
But wrong.
"…Captain," Kaien said under his breath. "You feel that?"
Ukitake was already standing.
"Yes," he replied quietly.
They stepped outside together.
At first glance, nothing seemed amiss. The sky was intact. The division grounds were calm. But the longer one looked, the more unsettling the scene became.
Wind twisted unnaturally above the rooftops, drawing clouds into a slow, tightening spiral. The reishi in the air had begun to flow unevenly — not dispersing, but gathering, as if pulled toward a single focal point.
Kaien squinted. "That's inside our division."
His spiritual senses sharpened instinctively.
"…That reiatsu," he muttered. "It feels.."
He stopped.
Recognition hit him hard.
"…Fujiwara."
The name left his mouth before he could stop it.
Kaien straightened. "That's her reiatsu. Or something built from it."
He frowned deeply. "But it's too strong. Way too strong."
Ukitake's gaze remained fixed on the sky. His expression had grown serious in a way Kaien rarely saw.
"…It's unstable," Ukitake said. "Not uncontrolled. Just… unfinished."
Kaien looked at him sharply. "Don't tell me—"
"Is she attempting Bankai training?" Ukitake murmured.
The words hung heavy in the air.
Kaien barked out a short laugh. "That's not funny, Captain."
But Ukitake didn't smile.
"…It would be early," he admitted. "Unreasonably so."
Kaien ran a hand through his hair. "She's barely been in Soul Society a year. Hell, when you gave her those instructions— that was what, six months ago?"
Ukitake nodded faintly.
"I explained the concept of materialization," he said. "And the theory behind subjugation. Nothing more. I never intended for her to reach this stage so quickly."
The wind above them intensified.
The spiral tightened.
The pressure deepened.
Kaien shifted his stance, feet planting more firmly against the ground. "This is starting to feel bad."
Around them, several lower-seated officers slowed, confusion spreading across their faces. A third seat staggered, dropping to one knee. Unseated members clutched their throats as the air thickened with spiritual density.
"This isn't just her reiatsu anymore," Kaien muttered. "It's affecting the environment."
Ukitake's brow furrowed.
"…The reishi is responding," he said. "Being pulled, compressed, redirected."
Then—
The pressure surged.
Not gradually.
Instantly.
The wind roared like a living thing.
Clouds twisted violently, darkening the sky as if the weather itself had been seized by unseen hands. A shockwave of reiatsu rolled outward, bending trees, rattling buildings, and forcing even seated officers to brace themselves.
Kaien sucked in a sharp breath, chest tightening. "Captain—!"
Ukitake took a half step forward, eyes wide.
"…No," he whispered.
The pressure stabilized.
Vast.
Unmistakable.
Absolute.
Ukitake stared at the sky, disbelief flickering across his usually composed features.
"…That," he said slowly, "was not subjugation."
Kaien's voice was hoarse. "…Then what was it?"
Ukitake swallowed.
"…That was a Bankai."
Silence.
Kaien froze.
"You're serious," he said quietly.
Ukitake nodded once.
"There is no mistaking that level of spiritual release," he said. "Even if it is immature. Even if it is incomplete."
He closed his eyes briefly.
"She has crossed the threshold."
Kaien stared at the sky, shock slowly turning into something else.
"…That's insane," he muttered. "She wasn't even supposed to be close."
Ukitake opened his eyes again, gaze heavy with realization.
"No," he agreed. "She wasn't."
The wind continued to howl in the distance.
Kaien exhaled slowly.
"…Then she won't be staying here," he said at last.
Ukitake looked at him.
"There is no scenario," Kaien continued, "where someone with Bankai stays a sixth seat. Immature or not."
Ukitake nodded.
"She will be promoted," he said quietly. "That much is inevitable."
Kaien grimaced. "And we don't have a vacancy."
"No," Ukitake agreed. "We don't."
The implication settled between them.
"She'll be reassigned," Kaien said. "Another division. Higher rank."
Ukitake's gaze softened, not regretful, but contemplative."It seems," he said gently, "that the wind was never meant to remain here for long."
Ukitake had known that Fujiwara would achieve Bankai ever since Kaien brought about her feats. He had always known that she would achieve Bankai for sure if nothing unfortunate happened. Yet, this amount of time was way too out of his expectations. He realized that neither him or Kaien truly found out how terrifying her potential was.
On the other hand, Kaien was quiet after Ukitake's words. The wind was never meant to be chained down for long, was it?
Kaien knew the day Fujiwara surpassed him entirely and got to a whole new level would come. He expected and looked forward to it as her previous mentor, but never in his dreams, had he ever thought that the day would come this early. Even though it felt like it was yesterday when she first got here and he trained her in Zanjutsu, and when she defeated him in that aspect, now, here she was, achieving a captain class spirt class and even a Bankai before him.
There was no doubt that Kaien felt happy for her. But at the same time, he felt a bit regretful that the time had come way too soon. He hadn't spoken certain words to her as her mentor when he was one, and never really got to exactly repair their relationship after the punishment and she pulled away, but now with things going this way, he might never have the chance to anymore.
A storm would rage on, and soon, the whole Gotei 13 and Seireitei would know that Fujiwara Rumi had achieved Bankai in about a year.
By that time, Fujiwara Rumi would no longer be just a promising officer with potential.
She would be the center of a new storm.