Kyōka Suigetsu

Aizen, and Gin taken back seeing the golden shield around them, from those Rod and banner and the Reiatsu they use, this barrier can already categorize as Forbidden Bakudo.

A powerful Kido that needs a use of the multiple high-level Shinigami and an absurd amount of Reiatsu.

"Interesting, I did not expect that you have this kind of Bakudo," Aizen tried to touch it but he was repelled by electric shock from the barrier.

"Not a barrier but a Seal, but you can also be categorized as Barrier,"

"Shoot to Kill!!"

Gin tries to attack it by his Shikai and as Aizen, his attack only bounces back while leaving numb feelings on his arms.

"Pretty tough Captain, my Shikai can even damage this thing,"

"You really are something Gin, of course, it's tough, 3 Captain Level use their Reiatsu to make this thing after all,"

All the Captain looked at the other 3 Captains, they did not expect that all of this was planted by their own Comrades.

Suddenly a shinigami from central appeared behind them, 8 of them were pale," Report!"

"What's the matter?" Chōjirō asked,

"T-The 40 wise of the Central Underground Assembly Hall are discovered dead this morning, the death is caused by a stab to heart while the death time is 3 days ago!" One said.

"What!!"

"How can that happen, did the Central Underground Assembly Hall just give the order this morning for this execution?!"

"That's impossible, we just all get the message from the wise man this morning, how can that thing happen?"

"If that really happens, who the hell can do that without noticing, they can cover it until now!"

All of them are confused but not everyone, the woman from Shinigami Women's Association knows what really happened, just based on the nature of his Shikai that thing is pretty easy.

Shunsui who in deep thought suddenly notice Nanao's unusual calm face, he confused asked," Do you know what happen Nanao-chan,"

"Well…. The Shinigami Women's Association knows who did this except for the death of the 40 wise men," Nanao said.

"Really?"

Nanao nodded.

"Can you tell us who did this?"

Nanao looked at Aizen while the others looked at where she was looking," Him? How? That's pretty impossible," Shunisu said.

"Nothing is impossible if you can fool us using his Zanpakuto," Unohana said.

"Kyōka Suigetsu? If I'm not wrong, Kyōka Suigetsu is a flowing-water-type soul cutter…. It distorted the sign with the reflection of the fog to confuse the enemy, causing them to fight among themselves," Ukitake said.

"That is what he told us, and the thing he wants to believe," Unohana said.

"The real thing is, Kyōka Suigetsu is not a water base soul cutter but an illusionist soul cutter,"

"It controls the five senses to the point where it can make the target misinterpret another person's form, shape, mass, feel, and smell to be an enemy's. The initiation condition for the hypnosis is for the enemy to see Kyōka Suigetsu at the exact moment it is released."

"After seeing it just once, this person will completely succumb to the hypnosis every time it is released, regardless of how long ago they saw it, even now, we are all in the effect of his Shikai,"

"When Aizen turns off the hypnosis by force of will, the image shown melts away or shatters. The complete hypnosis of Kyōka Suigetsu is absolutely flawless; even if the target is aware of being under hypnosis, they cannot resist its influence."

"The hypnotic abilities of Kyōka Suigetsu make it a highly useful tool in combat, for Aizen can create simple or complex illusions to deceive his opponents. For example, by creating a decoy of himself and that is the Corpse of him that we see this morning, or other illusions to distract his opponents, Aizen can hide his own movements and attack with impunity. His opponent will remain focused on the illusion until it is too late to react."

*Clap! Clap! Clap!

"Excellent, I did not expect that you already know the nature of my Soul Cutter, and it seems that you guys already know that I'm deceiving you all,"

"But what I'm confused about is, how do you know if all of you are inside of my gigantic Illusion?" Aizen asked.

The members of the Shinigami Women's Association smiled, and their smile made Aizen feel irritated for some reason.

"It's pretty simple, because 40 years ago, someone already saw your illusion, even though the Captain did not see it, but I already had a hunch," Unohana said.

Aizen thought who that person was but he couldn't remember any remarkable SHinigami in his memory.

"It's Xin," Soifon said.

"Before he falls in your hands, he leaves clues for us, and here we are, catching you off guard," She said.

"Oh~ that genius kid, i appreciate his talent, but who thought that a kid discover my secret, pretty interesting if he's still alive, I want to ask him how he discover my secret,"

"Damn you Aizen, even a kid, you still not let him!<" Toshiro angry shout.

The other Shinigami also felt anger in their heart, some of them are close to Xin, after all, Xin is pretty friendly and easy to mingle with.

"Well, even I felt sad, but his hindrance to my plan so he need to be removed before he becomes a bigger problem for me,"

"And who thought that he really became a huge problem," Aizen then looked at the Shinigami Women's Association.

"He's pretty smart knowing that he is going to die, so he left something for you girls. And this barrier?" Aizen touched it again but this time a tremendous pressure suddenly came out from him.

A huge difference than his previous spiritual pressure, he ten ripped the seal around them like gripping a piece of paper.

"Good, but not too good to hold me,"

"Reap!"

"Crush!"

"The Flowery Winds Become Disturbed, The God Of Flowers Sings, The Heavenly Winds Become Disturbed, The Devil Of Heaven Sneers."

"All Ye Waves, Become My Shield. All Ye Thunder, Become My Blade"

"Roar!"

"Sting All Enemies To Death"

"Growl"

"Run"

Almost all of the Captain and Vice-Captain release their Shikai, they discover that Aizen even hides his true strength and his strength is too much for them to handle.

"Ho~ this is good, I really want to try how powerful all of you are, let's start," Azien then made his move.