Rain's Ultimate Technique

Just as Gran Rey Cero was about to hit Unohana Retsu, she Everything's Gone swung out her weapon, Yachiru: Yachiru Removal!

Everything's Gone was transformed into a blood-red torrent in Unohana Retsu's hands. It was a visual illusion created solely by the rapid swinging of the swords, but in reality, it was a series of countless sword strikes.

As the name suggests, the bone-removing technique removes all the flesh from the enemy. Because the attack is so fast, the enemy doesn't even feel the pain of flesh being torn away after the move is over, and continues to move around as a skeleton.

In the Thousand-Year Blood War Arc, Kenpachi Zaraki was repeatedly turned into a skeleton by Unohana Retsu, only to be restored by the pool of blood from the Everything's Gone. Through this repeated torture, Kenpachi Zaraki learned swordsmanship through physical memory.

The blood-red blade of the bone-scraping sword sliced through part of the Gran Rey Cero. The moment Everything's Gone the Cero, Unohana Retsu realized that her Zanpakuto couldn't break through the Cero's attack. So she decisively changed her attack strategy, adjusted the direction of her attack, and used half of her slash to parry the Cero, while the other half attacked Tsuna.

Boom!

The fact that Unohana Retsu chose to break half of her Cero proves that the other half of the Cero will fall on her. Similarly, Tsuna's half of his flesh has been painlessly and silently peeled away.

The Cero engulfed half of Unohana Retsu's body, and before its energy was even depleted, it struck the ceiling behind Unohana Retsu, Cero with a deafening roar that ripped the floor of the Fourth Division off the building.

What's that noise?

The Bleach outside the Fourth Division all looked in the direction of the explosion. A huge crater had been created in the courtyard of the Fourth Division Barracks. As the smoke and dust cleared, everyone could see the scene below the crater.

Unohana Retsu stood in mid-air, her left half of her body completely gone, leaving only her right half holding the sword and her intact head.

Below Unohana Retsu, at the bottom of the pit, was a stretch of eerie blood-red, like Blood Pond Hell from a gay ghost story. The Ryoka named Sawada Tsunayoshi held a sword with both hands together, and his left half of his body had turned into a skeleton, with his internal organs visible through the bones.

"It's Captain Unohana!"

"That gentle Captain Unohana is actually this strong?"

"The captain is fighting the Ryoka. Vice-Captain, please order us to provide support!" The speaker was a Bleach from the Fourth Division, who, being inexperienced in battle, had no idea what the situation was like below.

"No one is allowed to move. Do not enter Unohana Retsu's battlefield." Chōjirō Sasakibe appeared beside the group and immediately gave the order.

"Vice-Captain Sasakibe, Captain Unohana is seriously injured. Is she really alright?" Kotetsu Isane asked with a worried expression. In her opinion, Unohana Retsu had lost half of her body, was in a very serious condition.

"You can't go in. If you go to Unohana Retsu's side now, you'll only get caught up in her attacks."

Of everyone present, only Chōjirō Sasakibe knew just how terrifying Unohana Retsu was now; he had almost forgotten how long it had been since he had seen that crazed expression on Unohana Retsu's face.

A thousand years ago, whenever Unohana Retsu showed this expression, no one within Unohana Yachiru had to consider whether they were even a match for her.

Sasakibe's gaze fell on Tsuna. Just how powerful was this Ryoka to reignite the Unohana Retsu had been dormant for hundreds of years?

Unohana Retsu's gaze was somewhat unfocused. It had been countless years since anyone had managed to injure her to this extent. Fortunately, it was only a minor fatal wound and wouldn't cause any serious harm.

The crimson fountain swallowed Unohana Retsu. As the blood flowed, the half of Unohana Retsu's body that had disappeared returned. Her naked half was covered by a tattered haori. Unohana Retsu, now half black and half white, appeared.

Unohana Retsu has fully recovered from her injuries, while Tsuna's body has only just been covered in Hollow-like white liquid. So-called High-Speed Regeneration is still no match for the self-healing of the number one doctor in Soul Society.

With the underground space opened, Unohana Retsu's fervent emotions calmed down slightly. She hadn't expected that her true nature, hidden for hundreds of years, would finally be exposed to everyone. She could only try to take Tsuna down as soon as possible.

Unohana Retsu appeared in front of Tsuna in the blink of an eye, freely switching between eight thousand styles of swordsmanship, all of which were bone-scraping fighting methods. The complex offensive that erupted in an instant caught Tsuna off guard, and the flesh that had just grown back on his body began to be damaged by Unohana Retsu again.

Because Tsuna wasn't completely letting Unohana Retsu attack him, he still used his dual swords and fins to parry and counterattack. But even so, Tsuna was still forced to retreat step by step. Even with the boost of his High-Speed Regeneration power, he couldn't prevent his flesh from being peeled away bit by bit by Unohana Retsu.

Tsuna Unohana Retsu, and the onlookers cheered in victory.

Renji Abarai, who still needed Tsuna's help, was somewhat worried about Tsuna. He hesitated whether to help Tsuna. Logically speaking, Tsuna's strength was more than enough to save Rukia, but Sasakibe's words made Renji hesitate. The strength that Unohana Retsu had shown was really terrifying.

Tsuna had been cornered by Unohana Retsu Unohana Retsu said, "Let's end this here."

Unohana Retsu Tsuna. She had no intention of killing Tsuna; she preferred to keep such an opponent around and play with him at her own pace.

Unohana Retsu Tsuna swung her sword at Tsuna, knowing she could save him no matter how badly he was injured. She planned to Tsuna Tsuna he was no longer able to fight.

"It's time to end this."

To Unohana Retsu's surprise, Tsuna also agreed with her, but Tsuna's eyes were full of determination and showed no sign of discouragement.

"Originally, I wanted to fight you using swordsmanship as much as possible, but I'm sorry, now I can only use forces outside of swordsmanship."

Unohana Retsu was somewhat confused, and then she felt herself strike a ball of liquid. Tsuna's two swords were completely enveloped in Rain Flame. Unohana Retsu was not angry, but instead said...

"The power of Zanpakuto? Let me see it."

"As you wish!"

The sword-shaped Rain Necklace slid off Tsuna's neck, and at the same time, the fish tail behind Tsuna emitted a dazzling blue light, the necklace shining with the same light, echoing the fish tail.

At this moment, the Rain Flame of the Vongola and the Rain Flame of the True Six Funeral Wreaths merged together, and the purity of Tsuna's Rain Flame increased infinitely, with the ultimate pure Rain Flame now under Tsuna's control.

The ultimate Rain Flame erupted from Tsuna's core, releasing a bright blue sphere of fire from his Zanpakuto, which instantly engulfed the entire underground space.

"What happened?" Shiba asked in surprise. He could sense that the pure spiritual pressure emanating from the Fourth Division was very strange, but he couldn't say anything.

"The Vice-Captain Sasakibe?" The azure spiritual pressure was clearly not that of Unohana Retsu. Kotetsu Isane was a little worried. Just as she was about to ask Chōjirō Sasakibe about the situation on the spot, she found that the Sasakibe had disappeared at some point.

"Vice-Captain Kotetsu, should we make a move?" a Bleach watching asked. Everyone knew that the enemy's strange spiritual pressure was not a good thing for Unohana Retsu.

"I'll give it a try."

Shūhei Hisagi forward. His Zanpakuto Kazeshini, after its Shikai, consists of two spinning scythes linked by Chains. It would be more reasonable for him to use a ranged attack to probe the enemy. Even if he were to be cut by Unohana Retsu, it would only Shikai in damage to his Shikai.

Under Shūhei Hisagi's control, Kazeshini flew towards the large pit in the Fourth Division Barracks. However, as soon as it reached the top of the pit, Kazeshini stopped moving completely, as if it had been frozen in place, remaining suspended in the air without turning.

"Shūhei Hisagi?"

Shūhei Hisagi tried to pull Kazeshini back, but Kazeshini remained completely unmoved. No matter how hard Shūhei Hisagi tried, he couldn't budge Kazeshini an inch.

This is the power that Tsuna uses: the ultimate technique of Shigure Soen Ryu Souen-ryu, evolved from the purest Rain Flame bringing ultimate Sedation power: Shigure no Hana.

Everything within the range of Shigure no Hana is imprisoned by the power of Sedation. Whether it is an attack or a living being, nothing can move within Shigure no Hana except for Tsuna, the user of Rain Flame.

The Shigure no Hana used by Tsuna is much stronger than the one used by Yamamoto Takeshi. Overall, the Rain Flame that Tsuna uses now are much purer than those used by Yamamoto Takeshi back then. The sustainability of Shigure no Hana is greatly enhanced, and its binding ability is also more powerful.

Inside the Shigure no Hana, Unohana Retsu remained in her Everything's Gone form, completely unable to move. She wanted to use the power of the Everything's Gone to exchange for blood, but the entire blood pool was within the Shigure no Hana's range, Sedation effect prevented the blood from flowing at all, thus rendering Unohana Retsu unable to move.

Tsuna could finally breathe a sigh of relief. He stood there in front of Unohana Retsu, letting her High-Speed Regeneration restore his body. The pressure of fighting Unohana Retsu was just too great. If he continued to let Unohana Retsu beat him, his body would soon turn into a skeleton.

Looking at Unohana Retsu, who was still releasing powerful spiritual pressure, and letting Unohana Retsu maintain her Bankai state, Tsuna was not confident that he could completely defeat Unohana Retsu Unohana Retsu unless he killed her completely.

Tsuna isn't that stupid. Killing Unohana Retsu would put him on a path of irreconcilable enmity with Old Man Yamamoto, and he doesn't want to be constantly targeted by the old man.

Since Unohana Retsu in her Bankai state can't be defeated, we just need to find a way to suppress her spiritual pressure and remove the enhanced form of her Bankai.

Azure flames condensed on the blade. Tsuna swung it towards the sky, and under Tsuna control, the pure Rain Flame began to turn deep blue. Soon, deep blue raindrops began to fall intermittently.

Upon contact with the raindrops, the Everything's Gone blood pool surprisingly began to move within the Shigure no Hana; at the point where each raindrop fell, the blood began to contract.

Gradually, the pool of blood shrank from the edge to the vicinity of Unohana Retsu, and then, driven by the raindrops, it climbed onto Unohana Retsu's Zanpakuto. The Zanpakuto began to fade from its blood-red color, and eventually turned into a normal, Asauchi form.

The Bankai Everything's Gone and released.

Ultimate Technique: Soul-Suppressing Rain.

Tsuna altered the power orientation of the Rain Flame, making the pure Rain Flame more inclined towards Sedation. Under the effect of the calming technique, all power returned to its original form, which is why the Blood Pool reverted to the Zanpakuto and why the Everything's Gone Technique could be broken.

After her Bankai was deactivated, Unohana Retsu's spiritual pressure fluctuations were no longer as strong. Only in this state, when she couldn't heal her body at any time, was Tsuna confident he could take her down.

"Feel sorry."

Tsuna said softly, Left Katana slashed between the two mountain peaks. The Shigure no Hana was dispelled, and Unohana Retsu was seriously injured and fell into a coma.