Death: Captain Millennium

Feeling the relentless spiritual pressure within him, Shiba Isshin felt a surge of ambition. He took a deep breath, channeling his spiritual pressure into the blade of his Zanpakutō. Then, he launched a swift horizontal slash at Kyohaku. The sharp blade energy, accompanied by the Zanpakutō, sliced ​​through the air, slicing towards Kyohaku before him. This move was his ultimate technique, Jaw Slash.

A scornful smile appeared on the oncoming Kyobaku's face. He confidently extended his palm, intending to block the blow. After all, Shiba Isshin's previous slash hadn't even broken through his defense. However, the reality surprised him.

The blade slashed across, and Xu Bai's left hand was undoubtedly severed. The severed limb flew into the air, and blood spurted out like a fountain. Xu Bai howled in pain, his eyes filled with astonishment and anger.

"Getsuga Tensho!" Shiba Isshin roared, unleashing his ultimate skill. A massive spiritual pressure slash erupted from his Zanpakutō, a crescent-like light instantly engulfing Kyohaku before him. The powerful impact sent Kyohaku flying backward, flying several blocks before crashing into the wall of a house.

Shiba Isshin followed in a flash, his body rushing towards Kyohaku like lightning, his Zanpakutō flashing with dazzling light. His movements were as smooth as flowing water, and each strike contained endless power, making Kyohaku unable to dodge.

In a fierce clash with Kyohaku, Shiba Isshin demonstrated his exceptional skill in the art of slashing. His attacks were as fierce as a storm, forcing Kyohaku to counter them with all his might. The two sides exchanged blows, neither yielding, and the entire battlefield was filled with a tense atmosphere.

However, Xubai is not a pushover either. The horns on its head began to accumulate powerful flashes of light.

Upon seeing this, Zhiba Isshin immediately drew his sword to block, and a white flash shot out from Xubai's horns and rushed towards him.

At the crucial moment, Shiba Isshin activated his Kidō, forming a blue shield before him. The flash collided with the shield, creating a deafening explosion. The shockwave from the explosion spread throughout the surrounding area, shaking the surrounding buildings to the point of collapse.

The smoke and dust cleared, and Shiba Isshin stood there unharmed. His face was grim, and he gripped his Zanpakutō tightly, ready to face Kyohaku's next attack.

Shiba Isshin muttered to himself, "This Waxu is really a problem. He just took my Crescent Moon Sky Strike head-on and didn't seem to suffer much damage."

The Kyobaku in front of him was panting, and it was obvious that the attack had consumed a lot of its spiritual pressure. But it still exuded a strong murderous aura and stared at Shiba Isshin.

At this time, Xu Bai's severed hand began to wriggle, and regeneration was visibly occurring.

Shiba Isshin frowned, thinking to himself, "Super-speed regeneration? This is troublesome. I can't let this go on! I have to find a way to get rid of it as soon as possible."

At this moment, Kyobaku suddenly launched a new round of attacks. It opened its bloody mouth and spewed out a black smoke that quickly swept towards Shiba Isshin.

Seeing this, Zhiba Isshin immediately used Flash Step to dodge, but the black smoke followed him like a shadow, chasing him relentlessly.

"Damn it!" Shiba cursed and slashed the black smoke with his sword. However, the black smoke quickly reassembled as if it had life and continued to rush towards him.

"Damn, what is this thing?" Zhiba Isshin felt annoyed. He found that he couldn't easily get rid of the entanglement of the black smoke.

At the same time, Xubai took the opportunity to launch another attack. It waved its sharp claws and pounced on Shiba Isshin.

Isshin Shiba had to distract himself to deal with the double attack from Black Smoke and Kyobaku, and for a moment he was in a passive situation.

He gritted his teeth and said, "Looks like we can't drag this on any longer. We have to use all our strength to defeat this guy!"

After saying that, Zhiba Isshin took a deep breath, and spiritual power surged throughout his body. He decided to go all out and fight a decisive battle with Xubai.

The strength of Xubai cannot be ignored. In this battle, Yixin fought with it from Naruki City to Karakura Town.

At this time, Urahara Kisuke, the masked army and Bayunsai, who were hiding in Karakura Town, all felt the two surging spiritual pressures.

They all stopped what they were doing and looked up at the sky with solemn expressions, secretly marveling in their hearts: "The spiritual pressure of battle can actually emit such powerful fluctuations!"

None of the three parties chose to take action because they didn't know if there was any conspiracy in this battle, especially the Masked Army and Urahara Kisuke. They didn't want to be exposed easily, knowing that they were wanted criminals in Soul Society.

"Ah! Yoruichi-san, Captain Shiba seems to be no match for that Hollow. Should we help him?" A man in a wooden clog hat said to a black cat beside him, covering his mouth with a fan.

The black cat licked its paw. "Kisuke, Shiba Isshin hasn't even unleashed his Zanpakutō yet, so don't worry. We can just take a look."

As for Bayunsai, Saito and Hiyori, they had no reason to take action. According to the records in the spiritual book, they were killed in battle.

At the same time, other powerful people such as Kurosaki Masaki, the only surviving descendant of the Kurosaki family with pure Quincy blood, and Ishida Ryugen of the Ishida family also felt the intensity of this battle.

"Long Xian, the battle between Mr. Death God and Hollow doesn't seem optimistic. Should we help him?" Kurosaki Masaki asked anxiously.

"Don't rush. Let's see what happens first," Ishida Ryugen replied calmly. He knew the Hollows were powerful, and this Shinigami was no ordinary mortal. In this situation, a blind attack could lead to more trouble. Furthermore, he was filled with curiosity about this mysterious Shinigami, eager to see just how capable he was.

However, as time went on, the battle became increasingly intense, and Shiba Isshin gradually fell into disadvantage. Kurosaki Masaki couldn't help but speak again: "Ryusen, if we don't take action now, that Death God will be in danger." She was extremely anxious, worried about Shiba Isshin's safety.

Ishida Ryugen frowned, thought for a moment and said, "No, I won't do anything. Masaki, you have to know that the Shinigami is the enemy of us Quincy. If we rush up rashly, the Shinigami might attack us." After that, he stood there motionless.

"But that's the Vasthold Hollow. It will be troublesome if that Shinigami is defeated." Kurosaki Masaki said anxiously.

After a moment of silence, Ishida Ryugen said, "Let's wait and see. It's not the right time yet. Even if we want to take action, we have to wait until that god of death dies." He clenched his fists tightly, with an inexplicable light flashing in his eyes.

Kurosaki Masaki looked into the distance worriedly, silently praying in his heart that Isshin could defeat Kyohaku.

At this moment, everyone was nervously watching this life-and-death battle, looking forward to the final outcome.

"He's really tough to deal with!" After fighting with Kyobaku for so long, Isshin Shiba was finally ready to release his Zanpakuto.

"Burn! Yanyue!"

"Om--" After a low sound, the Zanpakuto in Shiba Isshin's hand emitted a dazzling light.

The Yangetsu is a fire-type Zanpakutō. Upon release, it gathers a tremendous amount of spiritual pressure into the blade, unleashing flames that enhance its attack power and can manipulate the flames to scorch or explode its foes. The guard is a hexagonal shape with a simple pattern, and two tassels are attached to the end of the handle.

"This is..." Kurosaki Masaki's eyes widened in surprise. She had never seen such powerful spiritual pressure before, and a wave of fear surged within her. Ishida Ryugen's gaze grew serious, realizing that the Shinigami was about to unleash his true power. "That Shinigami has unleashed his Zanpakutō. Masaki, you don't have to worry," he consoled.

"Getsuga Tensho!" Shiba Isshin roared in anger after being released, swung his Zanpakutō forward fiercely. Instantly, a massive flaming spiritual energy shockwave swept out, hurtling towards Kyohaku.

Devoured by the flames, Xu Bai turned into a puff of green smoke. In reality, it had already distanced itself long before, leaving behind only a shadow.

It turned out that it had suffered a loss from Crescent Moon Sky Strike once before, so this time before Crescent Moon Sky Strike hit it, it turned around and left its original position with a loud noise.

Shiba Isshin put away his Zanpakuto and breathed heavily. The continuous high-intensity battles made him feel a little overwhelmed as he had not fought for a long time.

"Damn, you're quite cunning! But this is just my Shikai, and you'll die from now on!" Shiba stared at Xubai in front of him, a hint of ruthlessness flashed in his eyes, and he gripped the hilt of the sword with both hands, ready to perform Bankai.

At this moment, a powerful spiritual pressure came from behind, causing his body to tremble. Aizen, hiding in the shadows, took action!

"Bankai!..." Isshin was about to shout out Bankai's name when he suddenly felt a sharp pain in his back. A huge wound appeared on his back and blood gushed out. Fear and anger surged in his heart.

"Who is it?" He turned his head, trying to find the attacker, but it was pitch black and he couldn't see anything. However, he could clearly feel that the wound on his back was definitely not caused by a Hollow, but by a Zanpakutō.

Shiba Isshin's eyes widened, his heart filled with confusion. Who on earth could have attacked him without him noticing? And the opponent must have been incredibly powerful, otherwise they wouldn't have been able to break through his defenses so easily.

He gritted his teeth, enduring the severe pain, and still held his Zanpakutō tightly. Although seriously injured, he did not give up his will to fight.

The three groups watching the battle were all stunned, unable to comprehend this sudden turn of events. Who had attacked Shiba Isshin? The wound had clearly been inflicted by a Zanpakutō, and the blow had been incredibly brutal, nearly killing Shiba Isshin.

However, the person who attacked did not continue to attack. After hitting Yixin with a knife, he disappeared, as if he had never appeared.

Zhiba Yixin endured the severe pain and struggled to get up from the ground. His eyes were filled with anger and unwillingness, but more of a confusion. He didn't know why this person had attacked him, nor did he know if he was related to this battle.

"No matter who you are, I won't let you succeed!" Shiba Isshin whispered, his eyes revealing a firm determination. Despite being seriously injured, he refused to give up. He gripped his Zanpakutō tightly, ready for the next battle.

Then, Shiba Isshin focused his attention once more, staring intently at the Void before him. He knew that only by killing this Void could he find the truth. He took a deep breath, gathered himself, and prepared to throw himself into this life-or-death battle with all his might.

However, the seriously injured Yi Xin was no match for Xu Bai and was beaten back repeatedly.

Just as he was thinking about how to escape from the battle, a blue arrow of light flew straight towards Xu Bai.

The arrow of light struck Xubai, who howled in pain. His body began to burn, billowing black smoke as he roared in anger.

Then, a woman in a school uniform rushed over from a distance, extremely fast. She held a bow and arrow, her eyes firm and calm. She was Kurosaki Masaki, a Quincy.

"Who are you?" Shiba Isshin looked at the newcomer, his heart filled with surprise. He had not expected this girl to possess such powerful strength, and to use the attack methods of a Quincy.

"Mr. Death God, my name is Kurosaki Masaki! Are you okay?" It turned out that Kurosaki Masaki resolutely helped despite Ishida Ryugen's attempts to stop him. Although Shiba was a Death God, she couldn't bear to see him killed by a Hollow.

Kurosaki Masaki quickly performed a healing technique, and a soft light enveloped Shiba Isshin. His wounds healed at a visible speed, and his strength gradually recovered.

Shiba looked at Kurosaki Masaki with gratitude and said, "Thank you, Miss Kurosaki. But why are you here?"

Kurosaki Masaki pointed behind him and explained, "My home is nearby. I sensed the fight between you and the Hollow just now. I saw that you were at a disadvantage, so I came to help you."

Shiba Isshin's physical condition was quite poor. He gasped and said, "How naive! Miss Quincy, don't you know that the Shinigami and the Quincies are enemies? You're not afraid that I will kill you."

Kurosaki Masaki smiled brightly and replied, "I'm not afraid at all! Because I firmly believe that Mr. Death would never do such a thing. Besides, the enemy of my enemy is my friend!"

After hearing these words, Shiba Isshin felt a warm feeling in his heart. He had never expected that in such a critical moment, he would meet such a kind and brave girl.

"Great! Then let's join hands and fight against this Hollow together!" Shiba Isshin once again aroused a strong desire to fight, and together with Kurosaki Masaki, he resolutely faced the Hollow.

The two displayed a high degree of chemistry, with Shiba Isshin, his sword firmly in hand, engaging Kyohaku in a fierce head-on clash. Meanwhile, Kurosaki Masaki, with her impressive archery skills, continuously unleashed arrows.

Kurosaki Masaki's attacks were like a torrential downpour, each arrow carrying a fierce momentum that threatened to rip Xubai into pieces. The spirit bow in her hand emitted a constant whirring sound, inspiring awe.

However, Xu Bai was not easily defeated. It roared angrily, blood oozing from the wounds on its body, but its strength seemed undiminished.

At this moment, its horns once again condensed a dazzling white light, this time even stronger than before, which made people feel terrified.

"Get out of the way! It's about to unleash a Hollow!" Shiba Isshin shouted anxiously. He knew the power of a Hollow, and if Kurosaki Masaki got hit, the consequences would be disastrous.

Although Kurosaki Masaki possessed the formidable power of a Quincy, she was, after all, a mere human woman with relatively little combat experience. Facing such a formidable foe, she seemed somewhat bewildered. Furthermore, having never encountered a Vasthold-level Hollow like Kyohaku, she had no idea of ​​its attack methods.

Seeing that the Hollow Flash was about to shoot towards Kurosaki Masaki, Shiba Isshin had no choice but to give up attacking Kyobaku and quickly rushed towards Kurosaki Masaki, blocking the Hollow Flash with his body.

With a loud bang, the flash collided with Shiba Isshin's body, generating a huge impact force. Shiba Isshin's body was instantly knocked away and fell heavily to the ground.