The Seireitei's Peculiarity

First Division.

Shunsui Kyōraku served as the host, while Genryūsai Shigekuni Yamamoto acted like a waiter, constantly brewing tea and serving sweets for everyone in a corner of the tea room, without uttering a word throughout.

Tsuna glanced at Genryūsai Shigekuni Yamamoto and immediately understood Genryūsai Shigekuni Yamamoto's mindset. All the reforms in the Seireitei were entrusted to Shunsui Kyōraku. If Genryūsai Shigekuni Yamamoto wasn't the nominal Captain-Commander, he wouldn't even be present.

Kyōraku and Billy talked in great detail, describing their respective situations in Soul Society. The conversation was very long, and the people waiting were quite bored.

"Hey, Tsuna, why don't you let the old man chat here while you take us out for a walk?" Nini tugged at Tsuna's sleeve and whispered.

Noelle looked at Tsuna with expectation. The affairs management of Reverse London had nothing to do with them, the lower-level employees, and they had to keep them company in this oppressive atmosphere, which was extremely boring.

Before Tsuna could speak, Genryūsai Shigekuni Yamamoto quietly leaned closer. "Let's leave. We can just leave this place to them."

Tsuna himself had wanted to leave for a while, but he was also afraid that leaving Billy alone to face Kyōraku and Genryūsai Shigekuni Yamamoto Billy too much pressure on him, so he didn't leave.

Genryūsai Shigekuni Yamamoto also noticed Tsuna's boredom and offered to leave, leaving the situation to Kyōraku and Billy for a one-on-one duel.

Tsuna gave Nini and Noelle a look, and the group quickly followed Genryūsai Shigekuni Yamamoto out of the tea room.

"Sawada Tsunayoshi, you brought these people here. Are you sure you don't want to get involved in their conversation?" Genryūsai Shigekuni Yamamoto asked in the corridor.

Tsuna yawned boredly. "You guys are all talking about Soul Society. I'm good enough at guarding my little corner of the World of the Living."

Whether it's the East Bureau or the West Bureau, they are both part of Soul Society, Tsuna doesn't think he, as a human, has any reason to get involved.

Tsuna has little ambition; after defeating Yhwach, he probably won't visit Soul Society more than a few times a year.

Watching Tsuna's departing figure, Genryūsai Shigekuni Yamamoto shook his head helplessly. Trying to persuade Tsuna to take the position of Captain-Commander was still a long and arduous task.

Stepping out of the First Division, the oppressive atmosphere vanished instantly, and Nini regained her lively nature. There was no way around it; under Genryūsai Shigekuni Yamamoto's tutelage, the First Division had become too rigid and serious, something most people couldn't accept.

"Tsuna, where should we go next?"

Nini was overjoyed to be in Seireitei. In the World of the Living, she was so famous that she had to cover her face in various ways to move around freely. This East Bureau was great; nobody knew her, and she could move around freely.

"I'll take you to find Yachiru. She has plenty of places to take you around." If you really wanted to know where there was to do fun in Seireitei, Tsuna himself didn't know either, so he simply passed the buck to Yachiru.

"Yes, yes!"

Not only Nini, but Noelle also showed excitement. After only a brief encounter, Yachiru had already become friends with them.

Two days later, there was a knock on the door of the Sawada mansion. When Tsuna opened the door, he saw Billy teetering on the brink of life and death.

"Huh? How did you find this place?"

"Brother Kyōraku sent a team member to bring me here. Nini and Noelle have been staying with you recently, right? Are there any rooms available?" Billy asked, yawning and nodding his head, looking like he was about to fall asleep at any moment.

"Come in, you guys... you haven't slept at all these past two days, have you?"

"It's normal to discuss things in more detail..."

Before he could finish speaking, Billy collapsed on the sofa. Tsuna casually dragged him to an empty guest room. With the Kuchiki Clan's involvement, the rebuilt Sawada mansion was several times larger than before, with countless rooms.

Billy slept until dinner time, only getting up when he smelled the aroma of food. Nini and Noelle were still out hanging out with Yachiru. Taking advantage of this break, Billy gave Tsuna a brief overview of what they had been talking about over the past two days.

In short, the East Bureau and West Bureau reached a cooperation agreement. Seireitei needed the experience of modernizing Reverse London and the technology to integrate Hollows into daily life, while Reverse London's target was Hueco Mundo.

In the Reverse London, the number of dragons is limited, and the Reverse London cannot directly open the gate to Hueco Mundo. Therefore, in order to obtain more reserve power, the Reverse London needs the Seireitei's assistance in developing Hueco Mundo.

The plan is tentatively set at this point, with the specific implementation time scheduled for two years from now. During this period, Billy will also make occasional trips to exchange opinions between the senior management of both sides.

"That's about it. I'll see if there are any tickets available for tomorrow; I need to get back as soon as possible," Billy said.

"So soon? Nini and Noelle going back too?" Tsuna asked.

"No, they will still protect your parents as planned and go to London with them."

"Protection or surveillance?"

Now that the Sawada couple's abilities have been gradually perfected, ordinary Hollows are no match for them. If they have the ability to protect themselves, they don't need Noelle's protection at all.

"Of course it's about protection, letting Noelle interact with you more often to strengthen our connection."

"I'll just take it as a possibility for now," Tsuna said, indicating his complete disbelief.

"Fine, let me show you my sincerity one more time." Billy's eyes sharpened, his gaze shifting to his feet. "I wonder if you know that there's something strange about the shadows surrounding this East Bureau!"

Tsuna immediately stood up. Of course, he knew there was something strange about the Seireitei's shadow; wasn't the Wandenreich Seireitei within it?

The investigation into the shadows of Seireitei has yielded no results since it was handed over to the Technology Development Bureau. If it weren't for Tsuna's strength, people would probably have started gossiping long ago.

What surprised Tsuna the most was Billy's statement that there was something in the shadows, even though he had never been to Seireitei before.

"What did you notice?" Tsuna asked.

"It seems this matter is very important to you." Billy calmly lit a cigarette. "From the moment I arrived here, I noticed something strange. It's as if the East Bureau has been shrouded in stealth magic."

"It's not quite accurate to call it stealth magic. I can only sense it, but I can't actually find what's inside." Billy flicked his cigarette ash. "That's why I haven't been able to go all out when I started."

When Billy fought Kenpachi Zaraki, he always used two fingers to defend because he was wary of those guys hiding in the shadows.

After observing for two days, Billy discovered that what was hidden in the shadows was very likely not something Seireitei had deliberately hidden, which was quite interesting.

Billy felt it was well worth exchanging this information for Tsuna's goodwill.

Magic? The word flashed through Tsuna's mind. Could it be that the power of the West Bureau and the Quincy originated from the same source, which is why Billy was able to sense something?

However, due to the development of power, branches appeared, and Billy could only sense them, but could not find the Quincy in the shadows.

"Mr. Billy, can you help us find the guy in the shadows?"

Hearing Tsuna's form of address change, Billy knew his plan had succeeded. "I'm sorry, I can't stay here for long. If I don't go back the day after tomorrow, people from London will be coming."

This was done to protect Billy; if Billy didn't go back, it would be a serious diplomatic incident.

"Or could London send a Magicians who knows stealth magic? We can discuss the reward and everything else," Tsuna said.

"There's no need for that. I suppose you don't want us to know what's in the shadows, do you?" Billy waved his hand and suggested, "Doesn't the East Bureau have an ability called Kido? I can stay one more day and teach you the stealth magic."

"But the principles of magic and the art of Kido are somewhat different."

"Then let's modify it. The general store owner must be the technician, right? Wouldn't it be better to modify the stealth magic into a stealth Kido that you can use?"

Billy's suggestion was indeed tempting, and without much thought Tsuna picked up his phone to contact Urahara Kisuke. "Please wait a moment."

Watching Tsuna's retreating figure, Billy smiled. Although he hadn't been at the East Bureau for long, he could clearly sense that the East Bureau's overall combat strength was greater than that of their West Bureau.

Whether it's Kyōraku who chatted with him in the First Division, the old man who poured tea, or the woman who treated him, the most important person is Sawada Tsunayoshi, who was the first to come into contact with him. This is the greatest danger to the West Bureau, even if he hasn't shown any malice yet.

For the strong, it is always easy to receive goodwill from others. Whether it was Noelle protecting the Sawada couple or telling Tsuna about stealth magic, it was Billy actively releasing goodwill.

Tsuna returned quickly. "Mr. Billy, please teach us stealth magic. In return, you can ask for whatever reward you require."

Billy shook his head and extinguished his cigarette. "Sawada-sensei, all you need to know is that this is Billy's goodwill. No reward is needed."

Tsuna somewhat helpless. Favors are the hardest to repay, and since things had come to this point, he could only take it one step at a time.

At the Technology Development Bureau's testing grounds, Billy witnessed firsthand the full power of the Gotei 13. All the captains were present, along with Kurotsuchi Mayuri's recordings and data analysis, all in an effort to learn stealth magic in the shortest possible time.

"Then, let's begin."

Billy was under a lot of pressure. He hadn't expected that there would be more than a dozen people in the East Bureau who met the standards of a captain. Surrounded by a group of strong people, and with Tsuna right next to him, he would never have agreed to demonstrate in this way.

"Special magic, stealth..."

Before Billy could finish speaking, he melted away like liquid, leaving only a dark shadow in the distance. Billy had already disappeared into the shadow.

"Interesting, the existing equipment really can't find him!" Kurotsuchi Mayuri muttered to himself as he rapidly tapped on the equipment, which displayed various analyses of Billy's magic.

Among the onlookers, the masters of the Kido were not idle either, kneading a small ball of spiritual energy in their palms in various ways, just like when they created their own Kido.