True XBURNER

Not long after the dragon's roar faded away, another terrifying roar followed. Compared to the long, drawn-out dragon's roar, this roar was short, rapid, and even more explosive.

The flames that Tsuna had gathered in both hands burst forth together, and Natsu on his right lion Armguard naturally transformed into a giant fire lion, charging towards the sky.

The White Dragon Armguard on his left hand shot out a pair of fiery wings. This was what Byakuran meant by playing a support role, which is like adding wings to a tiger. Byakuran used his wings to add a pair of fiery wings to Natsu, the lion!

The lion and its wings launched out in an X shape. As they intersected and merged in the sky, Natsu, now with wings, could no longer see its charging motion and crashed into the barrier with a whoosh.

Boom!

The sound of the sky cracking echoed, and there was some resistance during the first collision. After all, the power of True X-Burner was not the Soul King's Power, Natsu's breakthrough speed was slightly slower than that of the Monk.

The Monk keenly sensed this and a small sense of smugness appeared on his face. Yes, this move was indeed very powerful, but as long as he reached the Soul King Palace, there was still a chance to turn the tide!

Because the Monk's size was much smaller than Natsu's after he grew to his giant size, even if Natsu followed behind the Monk, he couldn't pass through him; he had to break through layer after layer of obstacles on his own.

With just this slight obstacle, the Monk passed through another barrier. Sawada Tsunayoshi was no longer a threat; if he was slow, he would be slow in every step, and he would surely arrive at the Soul King Palace first!

"It's truly astonishing that he could unleash such a terrifying technique a second time," Senjumaru remarked as he watched Natsu disappear into the sky.

"What exactly does the Monk want? Does he still have a trump card in the Soul King Palace?" Genryūsai Shigekuni Yamamoto asked Senjumaru directly. Being an old and shrewd man, he could see Senjumaru's dissatisfaction. Asking him now would ensure that Senjumaru wouldn't be stubborn.

"I don't know either." Senjumaru simply shook her head helplessly. "Over the years, I've left my palace only a handful of times."

Looking back on the days of being promoted to the Zero Squad, the initial joy has long since faded. Although I nominally have my own Zero Division's Residence, there are no rules prohibiting me from leaving my post without permission. Isn't that just another form of imprisonment?

"This move alone might not be enough." Genryūsai Shigekuni Yamamoto, having received no useful information, became worried again. Tsuna couldn't be so confident as to turn back without seeing the explosion. The right choice at this moment was to chase after him and finish him off.

Without needing Genryūsai Shigekuni Yamamoto's reminder, Tsuna, having retrieved his Soft Flame, immediately chased after Natsu along the route he had taken. Even if True X-Burner succeeded, he still needed to retrieve the Monk's body and seal Monk away; he couldn't just wait there.

Watching Tsuna's departing figure, Genryūsai Shigekuni Yamamoto took a step, then calmly sat down again.

"What? Aren't you going to chase after him and see?" Senjumaru asked with a smile. She could tell that Genryūsai Shigekuni Yamamoto wanted to catch up with Tsuna in that instant.

"I... cannot become a burden to him!"

Although he was confident in his ability to deal with the Monk, Genryūsai Shigekuni Yamamoto was not certain that he could completely kill Monk, after all, the Jet Cannon could not destroy.

"If possible, I would also like to get to know Sawada Tsunayoshi..." Senjumaru said softly, bowing her head. She wanted to see what kind of person could command the trust of the Gotei 13 without any reason.

"Let's rest and recuperate in Seireitei for a while first..." Genryūsai Shigekuni Yamamoto said.

Despite Senjumaru being a member of the Zero Squad and having the duty to protect the Soul King Palace, Genryūsai Shigekuni Yamamoto made the decision for Senjumaru, seemingly already convinced that Tsuna would be the final victor in this battle.

Suddenly, a figure appeared beside Genryūsai Shigekuni Yamamoto —it was Urahara Kisuke. "Captain-Commander, did Tsuna go after the Soul King Palace?"

"That's right." Genryūsai Shigekuni Yamamoto continued gazing at the sky.

"Should we chase after them?" Urahara believed that only he and Genryūsai Shigekuni Yamamoto were capable of intervening in Tsuna's battle. If the three of them could kill one of them, they would have a chance to take down the Monk.

"Our strength is insufficient..."

Without needing to say more, Urahara immediately understood Genryūsai Shigekuni Yamamoto's meaning. While marveling at Tsuna's strength, which had exceeded his expectations, he summoned Yukio over.

"Yukio, please take this little thing upstairs for me."

Urahara tossed a small box to Yukio, Yukio understood and opened a black space, then threw the box inside.

"What's going on here?" Senjumaru's curiosity was not diminished by his physical weakness.

"I left an anchor point at the Soul King Palace. I originally planned to go with the Captain-Commander to help, but since he doesn't want to be a burden, we'll just observe from a distance."

Urahara summoned Red Princess and transformed the materials around him into a portable screen. The screen was connected to a signal and displayed an endless staircase.

"You!"

Senjumaru wanted to reprimand Urahara Kisuke for his actions, but remembering that he had already been defeated and that the Monk was about to be defeated as well, he swallowed his words. Watching Urahara Kisuke's tinkering, that long-lost itch of seeking the unknown welled up in his heart.

"Genryūsai Shigekuni Yamamoto Excellency Yamamoto, I... I wish to take a break at the Technology Development Bureau for a while," Senjumaru requested politely.

"I will help you apply to the Captain-Commander." Genryūsai Shigekuni Yamamoto squinted, Senjumaru's request somewhat lessening his worry for Tsuna.

Returning our attention to Tsuna, watching Natsu's retreating figure, Tsuna showed no sign of anxiety about not being able to catch up with the Monk.

When Byakuran broke through the first barrier, he had already completed the analysis of the barrier's components, and the data had been synchronized with the Decimo was controlling Natsu's actions.

The Monk, secretly pleased with himself, didn't notice Natsu's movements behind him. As they approached the second barrier, Natsu's speed in breaking through was already just as fast as his.

The third layer: the instant Natsu collided with the barrier, the flames on his body had already transformed the barrier into the most ordinary stone, making it no different from paper to him.

The fourth layer is that the invisible energy emanating from Natsu alone is enough to harmonize the barrier.

On the fifth level, the Monk had just passed through the barrier when he suddenly felt a the Heat heat coming from behind him. He rushed forward without looking up, and when he turned around, he saw a huge mouth burning with endless Scorching. The distance between them was only one barrier.

The Monk was so frightened that he ran upwards on all fours, but the power of the Kirinj was only applied to his feet. This sudden panic disrupted his original Flash Step rhythm, and he became even slower.

With a snap, Natsu, with a burning stone in his mouth, rammed into the Monk.

There was no time to escape; the Monk could only curl up and use his limbs to protect his body as much as possible.

Natsu, however, showed no signs of slowing down. He lunged at the Monk, and with the Monk in his jaws, Natsu's fiery wings flapped again, propelling him even faster as he charged towards the layers of obstacles above.

Calling it an obstacle seems a bit imprecise. Under the influence of the Sky Flame emanating from Natsu, the barrier that was hindering its progress turned into layers of rocks, which could not stop its speed at all. Natsu flew towards the Soul King Palace in one go.

[Wait, what is the Vongola trying to do?] Byakuran didn't understand. They had already hit the Monk, so why not just detonate the power of True X-Burner?

[Is the Decimo aiming for Zero Division's Residence?] Tsuna guessed.

"[Hmm, judging from the previous footage, the members of the Zero Squad have a mysterious connection with their Zero Division's Residence. In order to weaken the Monk's power to the greatest extent, I think we should blow up his Zero Division's Residence as well," the Decimo said calmly.

[I have no objection, but you'd better be careful not to accidentally blow up the entire Soul King Palace, or everyone will die.] Byakuran said absentmindedly, since he wasn't the one controlling the power anyway.

[I'm not that stupid, don't worry.] The Decimo is still quite reliable.

[Thank goodness it's an adult Vongola; it could have been that Vongola who invaded my base.] Byakuran remarked mercilessly.

Back when Tsuna from Reborn! Reborn! invaded the Meloni base, he famously blew up several rooms with a single X-Burner.

The Decimo ignored the idle Byakuran and focused on controlling Natsu's movements. When the barrier could no longer be an obstacle, the journey from Seireitei to the Soul King Palace was no longer a problem.

After 67 consecutive thuds of breaking stones, Natsu arrived at the Soul King Palace first. As soon as he appeared, the guards of the Soul King Palace seemed to have their underlying code activated, and they rushed towards Natsu.

Even Monk are no match for the true X-Burner, so how could these Soul King's Blade and Soul King's Shield possibly get even a fraction of a step closer to Natsu?

Like moths to a flame, they were petrified the moment they got close to Natsu by the surrounding spatial fluctuations.

Having already seen the basic layout of the Soul King Palace, Natsu wasted no time upon arriving and headed straight for the Monk's Zero Division's Residence Soul King Palace.

Just then, Tsuna had already caught up with Natsu and arrived at the Soul King Palace area. Seeing Natsu taking action, Tsuna looked at the Inner Palace in the middle, used Flash Step, and arrived at the bottom of the Inner Palace.

Tsuna did not intend to overstep his bounds in any way towards the Soul King. His only purpose was to prevent the explosion of Natsu from implicating the Inner Palace, or rather, the Soul King within the Inner Palace.

Before Yhwach appeared, the Soul King could not fall. However, Tsuna didn't know that inside the Inner Palace above his head, the Soul King King's pupils shifted downwards.

The scene that followed was relatively peaceful. Natsu, who had plunged headfirst into the center of the Monk 'Zero Division's Residence, activated the explosion without the slightest hesitation.

Flames shot into the sky, and the explosion engulfed everything. The massive Zero Division's Residence was like a fragile potato chip, instantly disintegrating. The fragments were quickly devoured by the Sky Flame, just as the Decimo had planned, to destroy the Monk and his Zero Division's Residence together.

However, the Decimo clearly underestimated the power of the True X-Burner. After all, it was his first time using this technique, and the explosive power was not completely contained within the Monk's Zero Division's Residence. The aftershocks inevitably caused damage to the surrounding area.

Puff! Puff!

The two closest Zero Division's Residence were slightly affected, with the once perfectly round Zero Division's Residence now in ruins. At the same time, both Yachiru Unohana and Kirinjī Tenshirō coughed up blood.

Fortunately, Tsuna was prepared and opened a barrier of flames with both hands to block the aftershocks of the True X-Burner rushing towards the Inner Palace.

What Tsuna found somewhat amusing was Byakuran's undisguised mockery and the Decimo's silence in his inner world.