Demon Slayer: The Journey That Began When I Became Yoriichi's Sister

Chapter 598 The Unknown is the Most Terrifying

Aizen watched Yuko's figure disappear around the corner, his eyes revealing an unreadable emotion.

Ginichimaru watched as Yuuko disappeared from sight, then turned his head with a smile: "Lieutenant Aizen, why are you so concerned about a third seat?"

His narrow eyes opened slightly, revealing his original blue eyes.

It's really something to worry about.

That guy who can manipulate even the captain so easily... actually cares so much about a third seat.

While asking the question, Gin Ichimaru was also muttering to himself.

Ever since Aizen asked him about Ikuko Tsugikuni, Gin Ichimaru had been very concerned, but he didn't want Aizen to find out, so he gave up the idea of ​​investigating secretly and only heard about it from his teammates' casual conversation.

Yuko has become quite well-known in Seireitei recently, mainly due to her amazing performance in the Seat Battle. She defeated the former Third Seat with almost effortless ease, which led to her being compared to the vice-captains of other divisions.

Some even think she's the next Kisuke Urahara.

It's worth noting that before becoming the captain of the 12th Division, Kisuke Urahara was the third seat of the 2nd Division.

Is there some kind of mystical power behind these positions? Then why were the previous three seats so easily eliminated?

"Do you care?" Aizen smiled gently, a slight curve appearing at the corner of his lips. "Not necessarily..."

"But I am indeed a little curious."

It was as if they appeared out of thin air, without any warning, in the Seireitei, and in a very short time became one of the three seats.

It's a pity he didn't get to see her make a move, and his suggestion was rejected, but that was within his expectations.

However, judging from the information I heard and the spiritual pressure he displayed at the Shihouin residence at the time, it wouldn't be an exaggeration to say that he was at the captain level.

Three seats... that's a bit too unfair.

Of course, Aizen wouldn't care about ordinary captains; the most crucial thing is that he has no information at all.

Just in case, he only demonstrated the initial interpretation of the illusion, without directly hypnotizing her senses.

It's best to deal with this unexpected situation as soon as possible to avoid any unforeseen complications. Currently, 99% of the people in Seireitei have already seen his Shikai.

“Eh~” Gin Ichimaru drawled, “It’s quite rare to see Lieutenant Aizen so concerned about someone.”

Aizen glanced sideways and said calmly, "Gin, do you have anything to say about what that Miss Yuuko said just now?"

Gin Ichimaru paused for a moment, then gave Aizen a strange smile: "Is there something strange about it?"

"Vice-Captain Aizen~"

A flash of white light appeared on Aizen's glasses as he pushed them up: "No..."

……

On the other side, Yuko casually walked towards the maggot's nest.

That boy... possessed the ruthlessness of a viper and the cunning of a fox.

It was just training, yet it was fraught with murderous intent.

That feeling is different from the situation when Unohana Retsu was fighting. Unohana Retsu's killing intent was very pure, it was just a satisfying fight where you cut me and I cut you.

While that young man's murderous aura wasn't as strong as Sister Hua's, in some ways, he was the one who needed to be more careful.

Does he harbor murderous intent towards Aizen?

Was that obvious murderous intent really not detected?

Or is there some secret between the two of them?

Honestly, I don't understand at all.

She's exhausted from dealing with all the interpersonal relationships here. She hasn't even gotten to know all the captains of the 13th Gotei 13 yet, let alone the vice-captains and the seated officers.

Currently, Yuko only knows the following officers: Ōmaeda Kinosuke of the 2nd Division, Yamada Seinosuke of the 4th Division, and Aizen Sōsuke of the 5th Division. They have exchanged two words and met twice. She also knows Kuchiki Sōjun of the 6th Division.

When Yuko was teaching Byakuya, she spoke a few words to that person. He was a very gentle young man, just as Yoruichi and the outside world had said.

It's not that he's particularly bad, but his weak appearance really doesn't seem like someone who can take on the role of captain. Being a vice-captain is already his limit.

It will take at least several decades for Byakuya to grow up, and it doesn't seem like it will be easy to sustain.

So, among the vice-captains she knew, Aizen seemed to be the most powerful.

In terms of spiritual pressure alone, Aizen is the first, with a spiritual pressure intensity that even surpasses some captain-level individuals. While Kuchiki Soujun's physique is relatively weak, his spiritual pressure level is also close to captain-level. Ōmaeda Kinosuke and Yamada Seinosuke, however, have slightly weaker spiritual pressure.

Especially Seinosuke Yamada, I don’t know if it’s because he came from the medical squad, but I always feel that the overall strength of their fourth squad is relatively weak.

However, Hana's strength is ridiculously exaggerated. Among the captains that Yuko has seen, she is currently second only to the strongest old man in the first division.

This is probably what neutralization means.

Judging solely from the intensity of spiritual pressure, even Yoruichi is not as powerful as Aizen.

If I had to nitpick, I feel that the Zanpakuto's abilities are a little weak.

Flowing water system?

What kind of system is a flowing water system?

She did know about the "flowing banquet" (a traditional Chinese banquet served over a large, unregulated meal).

It looks like it belongs to the elemental type.

While Yuko praised the ability to disrupt the enemy's vision by using the refraction of water and mist, saying it was only a polite remark, she was actually just being polite.

In fact, she felt that ability was somewhat lacking.

Yuko shook her head, trying to clear her mind of those jumbled thoughts. She decided to focus on the present matter first.

The following days were relatively peaceful. Yuko would patrol the maggot's nest every few days, go to the Kuchiki family to give Byakuya some pointers, or train Yushiro at home.

As for why Yoruichi wasn't included?

After gaining a deep understanding of and experiencing Yuuko's talent, Yoruichi no longer wanted to play with Yuuko.

Time seems to pass much faster in Soul Society; before she knew it, Yuuko had already spent several years there.

"...I'm telling you, isn't it about time you gave up?"

Yoruichi stood in front of the corridor, looking at the scrolls unfolding along the corridor, and Yuuko sitting cross-legged to one side writing with a scroll in her hand, and felt a headache coming on.

Yu Zi didn't even look up: "This is the thirteenth time you've said something like that this week."

"Huh? But today is only the third day."

"So you have to say it five or six times a day."

Yoruichi felt depressed for a moment, then leaned against a pillar and looked down.

She had only glanced at it casually, but suddenly noticed something and pointed to the scroll: "Have you already tried this?"

Yuko looked up in confusion: "Really?"

Yoruichi didn't respond. Instead, she picked up the scrolls that were already filled with writing and started searching through them one by one.

A moment later, she placed the exact same guess of the real name in front of Yuko.

"It really is true, I feel like my brain isn't working properly," Yu Zi muttered.

Yoruichi rubbed her temples in pain, saying, "I'm the one whose head has been hurting more and more lately."

"Huh? Why?"

Yoruichi glared at her: "Why? Because of you, you idiot!"

Yoruichi casually picked up a scroll and angrily threw it on the ground: "With this much time, I could have already communicated with my Zanpakuto!"

Yu Zi spread her hands, looking slightly helpless, and said, "But Butterfly said that even if I beat her up countless times, she wouldn't tell me."

Yoruichi glared at her angrily: "So, just because you guessed correctly, does that mean she'll agree?"

"No?" Yuko lowered her head and stroked the Zanpakuto placed beside her, which trembled slightly. "She said she would."

Ye Yi took a deep breath, and then everything went black. She felt that if she continued talking to this guy with such a strange way of thinking, she would eventually become an idiot herself.

"Do as you please." Yoruichi waved her hand weakly. "I hope you can fill up all the empty scrolls in the library."

Yuko looked up and smiled, "Thank you so much."

Ye opened her mouth, but couldn't say anything. In the end, she just said, "You can have fun. I'm going back to my room to rest."

It's much more reassuring to sleep than to watch this idiot act crazy outside.

Just as Yoruichi turned to leave, accompanied by a soft whooshing sound, a lithe black figure silently appeared in the courtyard.

The newcomer was none other than Soi Fon. Compared to a few years ago, Soi Fon now possessed a hint of girlish aloofness.

Over the years, Soi Fon has gradually grown into a reliable fighting force in the Second Division and has already possessed the strength of a seat officer.

Yuko looked up and smiled slightly at the person who came in: "Shoya, why are you in such a hurry? Is something urgent?"

Ever since a few years ago, when Yuko curiously asked why her parents had given her the name Soi Fon, she learned that Soi Fon's real name was Sho Aya and had been calling her Sho Aya ever since.

Although it sounds a bit strange, it feels very warm and cozy.

Soi Fon blushed slightly, first nodding in response to Yuuko, and then looking seriously at Yoruichi.

"Lord Ye, urgent news to report."

Yoruichi's annoyance vanished in an instant, and she calmly asked, "What is it?"

Soi Fon remained kneeling and reported at an extremely fast pace: "Central 46 has just issued an order that a senior official from the Technology Development Bureau has defected and stolen research data related to soul modification."

"Soul modification?"

Yoruichi's gaze suddenly sharpened, a cold glint flashing in her golden pupils.

Yuko, who was standing to the side with a slight smile on her face, was also slightly taken aback.

Soul modification.

She was very familiar with this word.

The incident involving the Uesugi family is still fresh in my mind.

But she has never heard those words again since.

Yoruichi frowned deeply. "Where is Kisuke now?"

"Captain Urahara has been summoned to the First Division barracks and is being questioned by Captain-Commander Yamamoto." Soi Fon's tone revealed a hint of worry. "The Central 46 is extremely angry about this matter and believes that it is a serious dereliction of duty caused by Captain Urahara's inadequate supervision."

"The Second Division is required to apprehend the target within three days and ensure the recovery of the data."

"Is the soul modification complete?" Yu Zi asked curiously. "Why did you suddenly defect?"

Yoruichi shook her head: "On the contrary, just recently, the Central 46 Bureau banned research on soul modification."

Yuko paused for a moment, then subconsciously asked, "Why?"

"Kisuke didn't tell me the specifics, but it seems that there is some serious flaw in the soul modification technology."

Yu Zi raised an eyebrow.

A serious defect?

Based on her understanding of the Central 46, unless it was a defect that threatened the interests of the nobility, it should not be stopped.

What exactly is the defect?

"Can the defector's location still be pinpointed?" Yoruichi asked calmly.

“Yes!” Soi Fon replied immediately. “He has the spiritual pressure tracking technology that Captain Urahara set up to prevent the technology from leaking. Although it is weakening, his current location is clear. He is in the 80th district of Rukongai.”

"Karaki".

“Zaraki…” Yoruichi squinted and murmured, “This is really troublesome.”

That was a notoriously chaotic place in Rukongai, a gathering place for vicious criminals, with complex terrain that made it extremely difficult to hunt them down.

"Soi Fon." Yoruichi's voice was devoid of any emotion.

"exist!"

"Go back to the Second Division now and inform Ōmaeda to mobilize the elite of the Execution Army to block the exit of Zaraki Ward."

"Yes!" Soi Fon accepted the order without hesitation and vanished from the spot in an instant.

Over the years, the child's Shunpo (Instant Step) became more and more powerful, and his skills became more and more refined.

"Yuko, let's go." Yoruichi called out casually after giving the order.

"Hmm." Yuko nodded slightly, slowly put away the scroll, placed it in the corner, and put her Zanpakuto on her waist.

"Let's go."

Yuko has been here for many years, and her understanding with Yoruichi has reached a point where no words are needed.

Thanks to their excellent Shunpo (flash step) skills, Yoruichi and Ikuko arrived at the 80th ward of Rukongai ahead of the rest of the army.

The air was thick with a pungent stench of dust, blood, and cheap liquor. Most of the houses lining the street were dilapidated, their wooden walls teetering on the verge of collapse, as if a gust of wind could blow them down.

This is the edge of Rukongai, and it looks completely different from the streets at the front of the sequence.

It was as if they had been abandoned by the Seireitei and the Soul Society.

The moment Yuko stepped into this area, she felt countless gazes cast upon her from the shadowy corners, filled with scrutiny and greed.

The owners of these gazes are mostly outlaws, their spiritual pressure chaotic and manic, like a pack of wild dogs that have caught the scent of blood.

Only when they saw the Grim Reaper outfits worn by Yuuko and Yoruichi did those greedy gazes reluctantly retreat.

"This is really an uncomfortable place." Yuko frowned slightly, her golden pupils scanning her surroundings.

This kind of place feels like it's full of vicious and ruthless people; anyone with even a modicum of kindness couldn't survive here.

Yoruichi curled her lip: "That traitor certainly knows how to pick a spot."

“At this rate, his spiritual pressure will disappear before we find him.” Yoruichi frowned. “Yuko, you go west, I’ll take the east side.”

"Be careful, there are a lot of thugs here."

She was confident in Yu Zi's abilities, but she still needed to be extra careful in places like this.

"Ok, I know."

"Notify me immediately once you detect spiritual pressure." Yoruichi nodded slightly, then vanished in a shadow.

Yuko watched her leave, then started walking towards the western area.

The spiritual pressure of a Shinigami is vastly different from that of ordinary souls in the Rukongai, even though this is the most dangerous area.