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

Chapter 617 is worth a try.

Yu Zi broke out in a cold sweat, speechless: "You never seem to have any good thoughts about me."

"No, that's too risky." Yoruichi wasn't in the mood for jokes; she frowned and seriously rejected the suggestion.

“I agree with Miss Yoruichi’s opinion.” Tessai looked down at the people lying in the cave and said in a deep voice, “Your regenerative ability may be very strong, but if we fail, none of us can guarantee that we can bring you back.”

Seeing that someone agreed, Yoruichi nodded in satisfaction: "Besides, given your current physical condition, you may not be able to withstand the erosion brought about by Hollowfication."

“Don’t worry about that.” Yu Zi chuckled and kicked the brown bear at her feet. “As long as you have energy to replenish, you’ll recover quickly.”

Yoruichi pursed her lips: "Even if you say that..."

Kisuke Urahara then interrupted, saying, "Theoretically, Ikuko's idea is feasible."

"The essence of 'virtualization' is to inject a virtual soul into a real soul, thereby breaking down the boundaries between souls and allowing the object to be sublimated into a higher-dimensional soul."

"In other words, it does have an invasive nature and can damage the soul."

"And Yuko's blood has the ability to resist rejection, and its regeneration speed may indeed be fast enough to resist the erosion of the void's soul."

"Moreover, it is not necessary to directly devour the other party. As long as it becomes calm or the rate of erosion is slowed down, it can be considered a success. There will be enough time to conduct research afterward."

Kisuke Urahara paused, then changed the subject: "Of course, the risks are equally enormous."

"I have no relevant research on Yuko's blood, so I cannot guarantee that her blood will definitely have a positive effect. It is possible that her blood will also cause harm."

At this point, Kisuke Urahara sighed softly, as if he was regretting something.

Yoruichi understood his sigh, her face darkening as she said in an unfriendly tone, "So you're blaming me?"

I still remember the scene when this guy sneaked into Yuko's room in the middle of the night and was kicked away by her.

Kisuke Urahara quickly waved his hand: "No, no, how could I dare?"

A vein appeared on Ye Yi's forehead.

"Okay, everyone, please don't fight," Yuko stepped in to smooth things over. "You've all misunderstood something. Even if we're going to try it, it doesn't mean we won't do any preparation."

"Hmm?" Yoruichi looked at her with a puzzled expression. "What preparations?"

Yu Zi patted her forehead: "You really think I'm an idiot."

"For something this dangerous, we definitely need to take samples and try analyzing them first."

"Ah, that's right, because Ye is just a nobleman who doesn't have to do anything."

"I'll kill you." Yoruichi's temple veins bulged even more.

After making a couple of jokes, Yu Zi squatted down.

Everyone squatted down as well, several pairs of eyes staring intently at her.

"……what?"

"You do your thing." Yoruichi's golden eyes were devoid of any emotion.

Yu Zi broke out in a cold sweat, then casually picked up a delicate little knife and first cut her wrist, letting a little blood drip down.

Yoruichi noticed that the recovery speed of her wrist injury had slowed down considerably.

Yuko looked up and pondered for a moment, then said, "I've decided on you, Captain Hirako."

She followed suit, cutting open Hirako's wrist and mixing his blood with her own.

Ye's eye twitched slightly: "Will this work?"

Yuko's eyes widened slightly: "Huh? Is that not allowed?"

"..."

So where did you get that arrogance from?

"Let's observe."

Kisuke Urahara interrupted their argument.

So the four of them squatted together, their eyes fixed on the pool of blood on the ground.

I squatted there for a while, and nothing happened.

Yoruichi couldn't help but ask, "Yuuko, can you feel the changes in your blood?"

"Can not be done."

"Huh? But aren't you...?"

“I have a very strong control over my body. I can even sense the exact location of blood when it spills out, but…” Yu Zi paused for a moment, “How could I possibly know about such subtle changes?”

Yoruichi couldn't help but chop Ikuko on the head with a chop: "Then what are we even doing squatting here watching?!"

"Ouch!" Yuko winced and rubbed her head. "What are you doing! We're just observing!"

"What if..."

“Something’s changed!” Kisuke Urahara’s eyes sharpened. He stopped joking around with the two and focused intently on the blood.

At this moment, the blood showed a slight boiling sensation.

"Forehead……"

Yoruichi was a little embarrassed.

Yuko raised her hand and slashed at Yoruichi's head: "I'm going to fight back."

"Don't even think about it!"

Yoruichi used Shunpo to escape, instantly reaching a corner of the cave.

"Damn it! Don't you dare run away!"

"Come and catch up if you dare."

Wo Ling Tiezhai was starting to lose his composure. "Do you guys even care about the lives of the other people?"

Yuko ultimately intervened and didn't get up to chase after Yoruichi.

After a slight boil, the pool of blood on the ground suddenly gushed out a little white liquid.

Kisuke Urahara calmly said, "It's the nature of the void that's starting to destroy the original structure."

Soon, as the white bone fluid multiplied, the scarlet blood began to stir restlessly, attempting to devour the white bone fluid in turn.

The two sides fought like armies, deploying their troops and engaging in fierce combat, making it difficult to determine who was superior for a time.

Kisuke Urahara sighed: "Unfortunately, we lack sophisticated instruments, making it impossible to gain a more microscopic understanding and judgment."

Wo Ling Tiezhai said in a deep voice, "There's nothing we can do about it. It's already lucky enough that everyone was able to escape safely."

"Ah."

As the group chatted, the scarlet blood and white bone fluid began to show a more noticeable difference.

The two sides, which were originally at odds, began to gradually converge, cover, and mix together as they collided.

If I had to describe it, it would look somewhat like blood mixed with brain matter.

Yuko's face showed a hint of disgust: "How should I put it... it's a bit disgusting."

"I don't really want it to enter my body anymore."

Yoruichi gave her a sharp tap on the head: "Is this the time to be worrying about this?!"

She turned to Kisuke Urahara and asked, "How did it go? Did it not work?"

Kisuke Urahara observed the changes in the blood and stroked his chin: "No, theoretically speaking, it seems worth a try."

Yoruichi pointed at the pool of what looked like brain matter on the ground, looking puzzled: "Huh? But isn't this what it looks like now?"

"Isn't this clearly being interfered with by the power of the void?"

Kisuke Urahara looked up: "But the Hollow nature didn't devour Yuuko's blood, did it?"

Yoru opened his mouth as if to say something, but was interrupted by Yuko.

"Don't worry, Yoruichi." Yuko patted her shoulder. "I know you're worried about me, but please trust me. As long as we split off a part of our body beforehand and transfer our consciousness before losing our minds, it'll be fine."

"Who cares about you!" Yoruichi retorted angrily at first, then compromised with some hesitation, "I understand. If you sense anything is wrong, you must get away immediately."

"I don't want to have to deal with an undead monster that has lost its mind."

Yuko pointed at Yoruichi and the other two and said, "This is called being tsundere."

Just before Yoruichi was about to lose her temper, Ikuko managed to escape.

"Alright! Now that we have a clear idea, let's get to the most important part of this plan!"

Yoruichi's anger subsided, and she asked in a daze, "The most important part?"

"Have a good meal! Have a good meal!" Yu Zi said with a thud, hoisting the brown bear lying on the ground onto her shoulder. "Do you want some?"

"If I'm not going to eat it, I'll just eat it raw."

"...Do we have a reason not to eat?"

Kisuke Urahara shrugged: "If a whole head can help you recover your strength more fully, then it's fine for you to eat it all by yourself."

"I see, then..."

……

"Delicious!!!" Tetsuzai sat solemnly in the cave, holding a wooden bowl that had been hastily carved from a tree, and exclaimed, "I never expected Miss Yuko's cooking skills to be so amazing."

"It's a pity that there's no seasoning in this desolate place. I only found some wild chili peppers nearby, which at least masked the fishy smell."

Yoruichi swallowed the food whole: "Hmm, it is indeed somewhat delicious."

Yuko held a bowl in one hand and raised her arm with the other: "But speaking of which, there's something strange about using this artificial body."

“You’ll get used to it.” Kisuke Urahara smiled and said, “All matter in the mortal world is made of artifacts. Although Shinigami can interfere with the mortal world, artificial bodies are indispensable if you want to move around easily.”

Seemingly considering Yuko's recovery, the three of them only ate a little bit as a symbolic gesture.

Yuko ate most of the remaining meat.

"I'm full, I'm full." Yu Zi patted her flat stomach, her face full of emotion.

Yoruichi had already put down her chopsticks and was resting against the wall. Hearing this, she turned around and asked, "How is your strength recovering?"

"It's about 70-80% there, I guess."

Yoruichi got up abruptly and walked out of the cave.

Yuko asked curiously, "Where are you going?"

"I'll go find you something to eat. You need to get your body back to full strength."

"...Just kidding, I'm already full." Yuko was touched, but also a little flustered.

"you sure?"

“I’m sure.” Yu Zixu clenched his fist. “If I could only recover my strength through raw meat and human flesh before, even if I ate this bear raw, it wouldn’t be enough to meet my strength needs.”

"But fortunately, my body eventually overcame this problem, and even human food provided sufficient replenishment for my body."

“And this thing is quite big.” Yu Zi paused for a moment, then patted her stomach.

That adult brown bear, almost entirely ended up in her stomach.

Yoruichi raised an eyebrow: "I thought so too. This is the first time I've seen you eat so much."

At home, this guy's appetite is basically no different from that of an ordinary person; on the contrary, she has a bigger appetite.

This is now far beyond her usual appetite.

“If everything is ready, we can begin.” Tessai Wakabi’s calm voice rang out. “I will be ready to use a forbidden technique to interrupt the transformation process at any time.”

"Okay, I'll leave it to you." Yu Zi nodded slightly. "By the way, could you teach me this forbidden technique?"

"No."

"So decisive? Aren't you going to reconsider?"

"No."

“I am very talented. With me as your apprentice, you will definitely benefit from it. Maybe you can even become famous through your apprentice in the future.”

"What nonsense are you spouting! You better behave yourself!" Yoruichi couldn't stand it anymore and gave Yuuko a flick on the forehead.

Yu Zi sighed regretfully: "It's alright. I'll keep bothering you until I've mastered your skills."

Wakami Tessai: "..."

Someone, please help him! This guy never hides himself from anyone!

However... if possible, he really wanted such a disciple.

But didn't you already know how to instantly cast high-level Ghost Dao?

It can be done instantly with both hands simultaneously!

Such a formidable guy, he doesn't have that kind of thick skin.

Yuko stood up and stretched: "Let's begin."

Yuko first casually broke off a piece of her finger and threw it to Yoruichi, who almost threw it away.

Arriving at Hirako and the others, Yuko used a delicate bone knife to cut Hirako's arm, took some blood from his body into her palm, then cut her own skin and pressed the blood onto the wound.

Yoruichi quickly asked, "How are you feeling?"

Kisuke Urahara said, embarrassed, "It won't be that fast. Infection takes some time, about a few minutes."

"I have a question about blood infection," Yoruichi asked again. "You just said that the essence of Hollowfication is to inject the soul of a Hollow into other souls, thereby sublimating the essence of the soul by breaking the boundaries between souls."

"But how can these souls be transmitted through blood?"

Kisuke Urahara explained, "A complete soul is not required; these bloodstains contain fragments of souls that belong to the void."

"I see."

Kisuke Urahara asked, "Ikuko, can you feel the changes inside your body?"

"I can feel blood that doesn't belong to me entering my body."

"..."

Seeing Yoruichi clench her fist, Yuko quickly added, "It might need a little time to ferment, but so far it feels good."

"Be sure to tell us if anything seems unusual."

As the group was talking, Yu Zi's expression suddenly changed.

"Hmm~"

Ikuko looked unbearable.

"Is there a response?" Everyone was startled, and their expressions turned serious.

Yuko's expression vanished in an instant, and she laughed, "No, I was just teasing you guys..."

boom!

A sound.

Yoruichi withdrew her fist, which was steaming, and Ikuko, who had a big bump on her head, quieted down.

“Uh…” At this moment, Yu Zi suddenly hunched over and her whole body trembled slightly.

Ye's eyelids twitched, and he gritted his teeth: "Again?"

Kisuke Urahara interrupted her: "No, the change has begun!"

An indescribable pain, accompanied by a burning sensation, suddenly surged throughout my body, as if something inside me was moving.

Yuko suppressed her pain: "I can feel it, something is spreading rapidly inside my body."