Moonlight Frost Blade

"I'll do whatever you say, Flame."

Shizuku answered without hesitation, just as he had always believed in her all these years in Hueco Mundo. There was no need for thought or reason; the siblings would face anything together.

Let's go say a final goodbye to Rukia.

Homura grasped Shizuku's hand, and the two of them shimmered with Reishi light. After Rukia forced back another enemy, phantom images of Homura and Shizuku appeared before her.

"Sorry, Homura, Shizuku, let's chat together after this battle is over."

Rukia's gaze was not on Homura and Shizuku at all, and she didn't notice their gentle and relieved looks at her.

"Rukia, there's no time left."

"How could that be? When I'm on vacation, we'll have plenty of time to go out and have fun together." Rukia was about to rush towards another Sinners, but Aizen stopped her behind her.

Rukia didn't notice, but Aizen saw the two illusory Hollows in front of Rukia. In Aizen's eyes, it was clear that these two Hollows were reckless, actively dissipating their spiritual pressure.

Even though he had reached a dead end, it wouldn't stop Aizen from watching one last show. With Rukia's power limited to using only white swords, losing her wouldn't make a big difference.

Distracted by Aizen, Rukia finally noticed her companions' odd behavior. "Homura, Shizuku, what are you doing?"

Homura and Shizuku exchanged a smile and said to Rukia, "We've come to say goodbye. It's a pleasure to see you again, and we're very grateful for your companionship for so long."

"What are you talking about? We can win! Ichigo and Tsuna have already fought their way into Hell. Trust them, we will definitely win!"

Rukia, or rather everyone else, has been holding onto this idea until now. If it weren't for Ichigo and Tsuna, they probably would have chosen Urahara's first option long ago.

"But can you hold out until then?"

Homura's smiling question silenced Rukia. She didn't know. Ichigo and Tsuna lost contact after entering Hell. Perhaps victory was imminent, or perhaps they were already dead. Their persistence was meaningless.

"You can definitely make it, Rukia." Just like they always supported Rukia, Homura and Shizuku maintained their unconditional trust in Rukia.

"I think so too!" Rukia nodded emphatically. "So you all have to wait with me until that time!"

"It's too late Rukia. The dissolution of Shizuku and me is irreversible, all so that you could fully utilize the Hollow's spiritual pressure!"

"What are you going to do?" Rukia was confused. His Hollowfication state wasn't particularly powerful, so what use would her Hollow spiritual pressure be?

"We have carefully observed Ichigo Kurosaki and Sawada Tsunayoshi's Beyond Bankai, and they are essentially products of the combination of Hollow, Fullbring, and Bleach powers, with the Hollow's power mainly acting as the adhesive."

"Since you don't possess Fullbring, strictly speaking, you can't achieve Beyond Bankai through this method. However, in a practical sense, there are three of us."

As Homura spoke, Shizuku drew their signature scythe. "Shizuku will use me as the glue to combine the portion of your Fullbring power that simulates your Bleach power with yours."

There was no need to say anything more; Rukia already knew what the two siblings were up to.

"It's precisely because you don't have a true Fullbring that we are the Hollows that are outside you. Therefore, Rukia, this power only has one chance. We will sacrifice ourselves to give you a chance to Beyond Bankai!"

"No..."

Rukia was about to say something when Homura cut her off, saying, "Rukia, we are already very satisfied. You have done so much for us; now it's our turn."

"But you..."

Tears streamed down Rukia's face. The power she needed to gain required sacrificing her friends. She wanted to say she didn't need it, but the Three Worlds were already at their end, and she had no choice.

Homura smiled gently, "Don't cry Rukia. We're already so happy to be able to meet again. We hope you'll continue to be happy in the future."

At this point, Homura and Shizuku's phantom images had disappeared down to their heads. The siblings smiled at Rukia without saying goodbye, for they would always stay by Rukia's side.

Suddenly, Rukia's Shinigami Uniform swelled up, and immense spiritual pressure filled her body. She felt like an inflating balloon, unable to effectively channel this power.

"Still a little short."

While Homura was explaining, Aizen already knew their plan. However, Homura's thinking was too simplistic. Although Fullbring's power wasn't particularly strong, as one of the four powers that make up the Soul King, could Fullbring be so easily replaced?

Aizen flicked his finger at Rukia's forehead, and the Hogyoku within her responded to Homura and Shizuku's most urgent wish, imprinting a fragment of Fullbring into Rukia forehead.

Everything fell into place naturally. The powers of Bleach, Hollows, and Fullbring were intertwined, and the path known as Beyond Bankai unfolded before Rukia. The Zanpakuto Sode no Shirayuki became the core of this path, and all of Rukia's power revolved around Sode no Shirayuki.

Rukia vanished, and a beam of moonlight shone down from the sky. The light was so cold it was piercing, and all the Sinners came near it turned into ice dust.

A figure drifted slowly down along the lunar passage, like a moon fairy descending to earth, ethereal and aloof from the world.

At this moment Rukia was wearing a blue and white kimono made of moon frost, with four Celestial Feather Garment surrounding her. Two long, icy pink earrings fluttered with the Celestial Feather Garment, further highlighting her ethereal beauty as a moon fairy.

The Zanpakuto in his hand had completely transformed into pure white frost, capable of freezing one's soul with just a glance.

Moonlight Frost Blade, this is the name of Rukia's Beyond Bankai.

At this moment Rukia's face was icy cold, her gaze sweeping over the Sinners like an ice blade, rendering Sinners immobile with just her eyes.

Just as Rukia landed, Toshiro suddenly heard a violent vibration coming from Hyōrinmaru, a resonance unique to Ice Style Zanpakuto.

Hyōrinmaru is undoubtedly the strongest Ice Style Zanpakuto, and Sode no Shirayuki is always just a step away from it.

But when the power of Sode no Shirayuki was combined with the power of the Tsukihana, everything changed. They reached the same level, and the two Ice Style Zanpakuto were able to resonate with each other.

Rukia glanced in the direction of Hyōrinmaru, and a beam of Tsukihana shone down. Toshiro could clearly feel that the moonlight was bone-chillingly cold, but Hyōrinmaru's power was rapidly recovering.

There was no other way; there were too many Sinners to deal with, and Sode no Sode no Shirayuki alone was not enough. Rukia needed the power of Hyōrinmaru.

Toshiro's condition was fully restored, and weapons Beyond Bankai automatically donned onto his body.

Toshiro didn't dwell on the order of precedence or hierarchy; he flew to Rukia's side and asked, "What do we need to do?"

"Cooperate with me."

There was no explanation, just an order. Rukia needed Hyōrinmaru to help her expand the range of her freezing attack; she wanted to control all the Sinners!

Aizen's face showed an interesting expression, and his spiritual pressure surged again. He directly locked onto the members of the first Gotei 13 and forcibly stopped their actions.

Rukia Zanpakuto high, drawing down an extremely cold spiritual pressure from the moon. The moment the Zanpakuto caught this spiritual pressure, Rukia's hand turned into frost.

Rukia quickly Zanpakuto a horizontal slash, releasing the frost of the Tsukihana to freeze everything in its path.

"Now!"

Following Rukia's instructions, along the path of the white frost slash, white ice lotuses bloomed instantly. As the power of the frost was about to be exhausted, the ice lotuses quietly withered, transforming into the driving force for the frost's advance.

It sounds complicated, but in reality, the white frost only flashed by for a moment. All the Sinners were penetrated by the spiritual pressure of the frost, and their bodies began to freeze uncontrollably.

With a crackling sound, from the inside out, in the blink of an eye, lifelike ice sculptures appeared in Karakura Town.

Affected by the powerful frost, the ground and the cracked sky were covered with a thick layer of frost. Ice is solid and stable, making it the best sealing material.

"Is it sealed?"

As soon as Toshiro asked the question, he suddenly realized that he was also covered in frost, which started from his abdomen and spread throughout his body.

"I'm sorry, Captain Hitsugaya."

Rukia's slashes were launched in a circular pattern, inevitably bringing everyone in Karakura Town into her attack range. There was no time for her to practice abilities Beyond Bankai; Rukia could only keep releasing her spiritual pressure.

Toshiro glanced to the side and saw that his companions, along with Sinners, had been frozen into ice sculptures. The reason he was slower was because of his Ice Style Zanpakuto.

"It's alright, you did a great job." Toshiro comforted her, saying that freezing everyone together might offer a better chance than being killed by the Sinners.

It was only then that Toshiro realized that not only he, but also Rukia, the user of the power, was affected and was slowly turning into an ice sculpture.

"Only in this way can my frost be sealed for longer," Rukia explained.

Toshiro understood Rukia's meaning, and turned his head towards the closed Gates of Hell, "Trust them."

With Toshiro and Rukia also turning into ice sculptures, the entire Karakura Town became a world of ice and snow, a scene of utter desolation where no one survived.

This state didn't last long. With a crack, the mirror shattered, and Aizen stepped out, marveling at the battlefield that had been turned into an ice sculpture.

Thanks to Rukia's antics, there's no need to worry about Hell's continued invasion until Rukia's power disappears.

Next, we'll see what happens to the two who have entered Hell.

(PS: I'm really awesome, I even managed to Rukia's new form, hehehe.)