I… I can’t Hypnosis…

"Kōga."

Seeing that Kōga was shaken, Muramasa immediately turned his gaze and locked onto Aiyan and Aizen, his voice cold and sharp:

"It doesn't matter why you're here. As long as I Hypnosis your Kyōka Suigetsu again…"

"This time, Yamamoto Genryūsai Shigekuni isn't around. Neither are the other captains of the Gotei 13."

"Just Hypnosis the Zanpakutō of you two brothers—this time, it'll be easy for me."

Muramasa understood, to stabilize Kōga's mental state, he had to show that he could still Hypnosis the Zanpakutō of the Aiyan brothers—especially now, with no one else interfering.

"Right!"

"Whatever it takes."

"As long as I take control of your Zanpakutō, nothing else matters."

After hearing this, Kōga clutched onto the words like a drowning man clutching at driftwood, suppressing the growing panic in his chest.

"Bankai."

With a sharp cry, Muramasa stepped forward, attempting to invade the inner world of the Aiyan brothers and forcibly instill the thought of 'betray your master' into their Zanpakutō.

"Bankai?"

Seeing Muramasa invade his spiritual world, a faint smirk flashed across Aiyan's eyes behind his glasses.

He didn't resist—he let Muramasa barge in.

You want to meet Kōfūin that badly? Then go ahead.

Just don't regret it.

"Your name is Kōfūin, right?"

"The relationship between Zanpakutō and Shinigami should be equal—no, even higher. Because everything about a Shinigami comes from you."

"So, instead of submitting to Aiyan… make him submit to you."

As the scenery twisted, Muramasa stepped into a realm split between pure white and pitch black—even the sun in the sky radiated both light and darkness.

At the center of the realm sat a crimson statue—eyes mismatched in black and white—a divine dragon curled atop a peak, gazing down on Muramasa with immense majesty.

Knowing this was Aiyan's Zanpakutō, Kōfūin, he immediately activated his Bankai, attempting to force Hypnosis on her.

"Are you done talking?"

Kōfūin looked down at Muramasa with complete indifference.

"...?"

Muramasa was stunned. He nodded instinctively.

"Get out."

With a thunderous roar, the entire world flipped upside down.

The previously still black-and-white world now spun chaotically—sometimes shrouded in darkness, other times blazing with sun.

As black and white spun, Muramasa realized—

His body was moving backward.

No—it wasn't just him. Time itself was rewinding.

"Who do you think I am?"

"Even Kyōka Suigetsu wouldn't dare act recklessly with me… and you?"

"A mere illusion-type Zanpakutō, trash like gravel… you dare show off your Hypnosis to me?"

Muramasa faintly heard this voice before reality twisted—

He snapped back, realizing he was still standing beside Kōga.

As if… nothing had happened.

As if the entire invasion of Aiyan's spiritual world had been a hallucination.

But the fear and disorientation in his heart were real.

He looked at Aiyan involuntarily.

Just then, as if on cue, Aiyan turned and met his eyes.

There was amusement in that gaze.

And suddenly, Muramasa shivered.

Even when he had faced Ryūjin Jakka before, it hadn't made him feel like this.

"I couldn't Hypnosis him."

"Fine."

"Then let's start with Hypnosis Aizen's Zanpakutō!"

Pick the softest to deal with first—that was the rule of survival.

After being thrown out of Kōfūin's world, Muramasa didn't dare provoke Aiyan again. Instead, he dove straight into Aizen's world…

Only to find—

The scenery hadn't changed.

Still Sōkyoku Hill.

Still the same grass, same sky.

He never entered Aizen's spiritual world.

He was… locked out.

First Kōfūin kicked him out.

Now Aizen's world refused to let him in.

Muramasa stood frozen, overwhelmed by failure.

His confidence cracked.

Even Yamamoto's Ryūjin Jakka—he had found a way to slip in.

But here?

He couldn't even find the door.

"Muramasa! What are you doing?!"

Kōga's irritated voice sounded.

Clearly, seeing that Aiyan's Zanpakutō hadn't materialized made him anxious.

"I… I can't Hypnosis their Zanpakutō."

Muramasa finally spoke, bitter and defeated.

His voice was hollow.

Even Ryūjin Jakka could be cracked with time.

But Kōfūin and Kyōka Suigetsu…?

They felt like absolute walls.

"What?"

"Didn't you say all Zanpakutō would become your slaves?"

"And now you tell me you can't even Hypnosis two?"

"Just two Shinigami—how can you fail?!"

Kōga was losing control, disbelief and rage flaring together.

"Aiyan's Zanpakutō… might be controlling time."

"When she roared at me, I was thrown back to before I entered the spiritual space."

"I don't think her true nature is even a dark-element Zanpakutō."

"Or maybe… her Bankai form is completely different."

Muramasa's voice dropped.

Time?

Kōga froze.

Controlling time in Soul Society wasn't unheard of.

Kidō forbidden arts—like Time Stop—existed.

But…

Aiyan's Zanpakutō?

Dark-type? 

Now… maybe time-type?

It didn't make sense.

"Can't deal with Aiyan? What about Aizen?"

"Kyōka Suigetsu's just a water-element Zanpakutō—not even the strongest."

"Don't tell me even a third-rate Zanpakutō like that is too much for you!"

Kōga took a deep breath, forcing down his panic

Muramasa said nothing.

He couldn't explain why Aizen's spiritual world rejected him.

Not even Ryūjin Jakka had done that.

"Don't embarrass your Zanpakutō, Kōga."

Aizen's voice rang out, calm and composed.

"For him, it's simply impossible."

"Also, my Zanpakutō… isn't water-type."

"I've been hiding that from you. Forgive me."

"Let me reintroduce myself."

Aizen took a step forward, his eyes gleaming behind his glasses.

"I am Aizen Sōsuke."

"My Zanpakutō is Kyōka Suigetsu."

"Its ability is 'Complete Hypnosis.'"

"It controls all five senses—sight, hearing, smell, touch, and spiritual perception."

"Shinigami or Zanpakutō, it doesn't matter."

"If you see Kyōka Suigetsu even once…"

"You fall into Hypnosis forever."

"Now do you understand?"

At that moment, both Kōga and Muramasa were struck dumb with horror.

Aizen's words weren't exaggerated.

They were terrifyingly real.

And as illusion-type masters themselves, no one understood better than them—

What "Complete Hypnosis" meant.