He couldn’t see… anything at all. The darkness swallowed him in a single, hungry gulp. The sudden absence of colors and shapes felt oppressive, making his thoughts race involuntarily. His eyes, deprived of their usual stimuli, responded to the void by producing red afterimages that resembled bloodstains.
The abyssal blackness closed in on him without mercy.
Was this how Kaname experienced the world every single day?
If so, as utterly isolating as it was, it also seemed fascinating. Not simply because it was limiting and therefore demanded the sharpening of all his other senses. But because of how unfair it was to be forced to live that way.
Such injustice surely sparked an understandable anger. And anger could be a useful tool when properly refined and directed. It often served as the engine of necessary change. That was how all progress began.
He couldn’t hear anything either. It wasn’t the kind of silence meant to soothe the mind – it was absolute absence, not of sound itself, but of the very ability to perceive it.
Such profound sensory deprivation could easily have driven a lesser Shinigami mad. Suzumushi’s power was truly magnificent, granting its victims the rare opportunity to experience a deathlike state while still alive.
No sight, no smell, no sound, and worse still – no ability to sense spiritual pressure. Of the six basic Shinigami senses, four were nonexistent within Kaname’s Bankai. For most unfortunate opponents, this state must have triggered an instinctive panic.
If Aizen had been a different person, perhaps he too would have felt the fear of being helpless. But Aizen was a master of controlling the senses. His heart beat calmly in his chest with a steady rhythm.
“How very interesting,” he mused, or at least attempted to. It was impossible to verify whether the words had come out correctly when no sound reached his ears to confirm it. Regardless, Aizen decided to speak anyway, knowing that Kaname could hear him.
“You can end your opponent’s life with a single blow. What an efficient and merciful power.”
The pitch-black void around him didn’t shift; there were no shadows to flicker within the perfect darkness. If Kaname approached him, Aizen wouldn’t be able to hear it, nor sense his presence in any other way.
And then came a sensation, a gentle pressure against his skin. Not spiritual, but purely physical, tangible and real.
It didn’t seem like much, only fingertips brushing against his wrist. Yet within this empty void, stripped of all sensations, the touch registered with far greater intensity than it normally would have.
Aizen’s reiatsu didn’t flare; it merely coiled beneath the surface of his skin, tense and ready to erupt. But no reaction was necessary. His rational mind had no doubts about Kaname’s pure intentions.
At the same time, the realization came to him – cold and sharp as the edge of his blade.
If his body could still register touch…
Aizen knew exactly what it meant.
“Oh, I see,” he said to no one, his eyes seeing nothing but blackness around him. The only indication of Kaname’s close proximity was the warm, unmistakable sensation of his fingers lingering against Aizen’s wrist.
“I must apologize to you, Kaname. I mistook your power for mercy, for granting your enemies a clean, swift death.”
He paused, letting the faintest smile slip across his face – a reaction Kaname would never be able to see, only infer it from his tone of voice, if he allowed that nuance to be heard.
“But now I know there is no place for mercy in your heart, only judgment, punishment, and justice. And your Bankai truly captures your essence. It is a worthy Bankai, Kaname.”
If there was a touch, there could also be pain – a vast sea of it delivered to the victim in this hopeless state of blindness and deafness. This only highlighted the hatred Kaname had always carried in his soul. The man called it justice, but Aizen didn’t believe in such ideals. Morals were forged by weak and fragile minds seeking escape from the harsh reality of this corrupted world. He wouldn’t admit that to Tōsen, of course, because Tōsen needed this lie of justice to keep himself on track. However, witnessing this Bankai and experiencing its cruel potential firsthand made Aizen see clearly what was hiding deep in Kaname’s heart.
All this blackness, all this hatred, all this need for revenge – it was all beautifully aligned with Aizen’s own desires, and Kaname would lend it all to him.
Just for him.
And for the necessary change.
Perhaps Kaname didn’t fully understand the mechanism behind their inevitable alignment – just as an insect wouldn’t understand the hand closing around it. Deep-rooted anger had connected them, and so had isolation.
Both of them were alienated in their own distinct ways: Kaname for being born blind, and Aizen for being born… strong.
Kaname’s blindness had never been a threat to Aizen’s plans, nor the reason Aizen manipulated him. On the contrary, it was precisely why he had never needed to use his tricks on Tōsen.
He relaxed his muscles, not allowing his fingers to twitch as Kaname’s hand slowly closed around his wrist – a sensitive spot for every Shinigami, where the reiatsu vents were located. A thought arrived of its own accord, ugly as a drop of ink carelessly spilled across neat handwriting: He is measuring my reaction, the logic behind the thought was undeniable, checking for fluctuations in my spiritual pressure and taking my pulse.
Yet he did nothing with this realization, waiting for the thought to pass like a breeze on a summer day. If he wanted to, he could break the contact. He could probably even use his dense reiatsu to shatter the Bankai itself.
He didn’t want to do that. He didn’t feel any need to free himself.
Kaname pulled at his wrist then, still gently but clearly demanding a reaction. In the pitch-black, soundless pit of this deadly domain, Aizen’s brain anchored itself to the only stimulus available – to the single point of contact – and so the pull felt like a huge change, inflated into unreasonable importance.
He followed the instruction without resistance, letting Kaname guide his hand. It felt terribly close to reliance, and Aizen hated it. Bottling up this undeserved hatred, he reminded himself that it was safe. With Kaname, it was the closest thing to trust he had ever known.
The man guided his hand up and forward until Aizen’s fingertips met some resistance. A rough, uneven texture bloomed as a new sensory detail under his touch. His brain immediately recognized it as the cotton wrapping around Suzumushi’s hilt. The moment his fingers grasped the sword’s handle, Aizen’s perception suddenly returned to normal – all of his senses: his sight, smell, and hearing – activating all at once, as though someone had switched on a light in a dark room.
The sheer contrast in sensory input almost took him aback. The ink-like darkness still surrounded him, but now he was able to see Kaname standing right in front of him. Close. With his fingers wrapped around Aizen’s wrist, holding it carefully.
Aizen’s eyes had to adjust to the piercing blackness. When he gazed down at Kaname’s face, he saw the hidden conflict just beneath the calm surface. Not in the eyes, they were blank and expressionless, but in the corner of his mouth that failed to form a straight line, or in the way a vein was pulsating at his temple.
Aizen briefly wondered what lay at the root of this inner conflict. Was it about revealing the obvious flaw in his newly attained Bankai? Or was it a regret over having the audacity to touch Aizen’s hand without spoken permission. Whatever the reason, Kaname’s body language betrayed the lack of confidence. Yet his hand stayed where it was – at Aizen’s right wrist.
“Aizen-sama, I want to thank you,” the man said calmly, and his smooth voice was close to a whisper. It didn’t echo through the depths, but rang in Aizen’s ears as the only source of the sound in this bottomless pit of darkness.
“For bearing witness to my first Bankai release,” he specified after a pause – a pause that stretched like a breath held too long to be meaningless. “For inspiring me to reach this level of power,” he added. “I will refine this power so that it may better serve our righteous cause.”
“Oh, it will be very useful to us,” Aizen told him, shaping his tone into approval, each word heavy with unwavering certainty. “In fact, I can already think of multiple scenarios in which it will grant us strategic advantage.”
He didn’t elaborate on his plans any further; Kaname didn’t need to know them to follow. Instead, he made sure to let his smile be heard in his voice. There was no manipulation in it; he was genuinely pleased. Pleased with Kaname’s progress, with what his Bankai could offer. Even with Kaname’s boldness when the man lifted his chin, as if to look directly at Aizen's face with his unseeing eyes.
For someone as devoted as Kaname Tōsen – someone who understood who Aizen really was – such bold behavior must have felt almost sacrilegious. The man squeezed his wrist a little tighter before releasing it reluctantly.
A muscle reflex, Aizen assumed, or perhaps an emotion strong enough to manifest as a physical reaction – briefly expressed, then contained again.
The absence of contact left a different kind of sensation, a tingling against his skin where Kaname’s hand had been. His own fingers moved to trace the braided cords of Suzumushi’s handle, his fingertips memorizing the feel of them – the same way Kaname might learn the shape of a foreign object.
Getting to the tip of the hilt, Aizen tightened his grip around it. His thumb rubbed against the cold iron of Suzumushi’s end cap. Once. Twice.
Then he lowered his head, leaning toward Kaname just slightly.
“Sight, smell, sound, even reiatsu awareness – your Bankai removes them,” he murmured, purposely softening his voice to make it more magnetic. His lips were now barely inches away from Kaname’s ear, so he was certain that the man could feel his breath on his cheek.
Yet Kaname didn’t flinch. His stillness only sparked more curiosity within Aizen’s mind. His lips curled gently into a placid half-smile as he let go of Suzumushi, allowing his senses to be consumed by the overwhelming absence once again.
“There is one last thing left to be examined,” he said into the void. The words left his mouth and vanished into the deafening silence.
“Kaname, would you like to assist me with another test? If touch still remains, I wonder… what about taste?”
