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

"Don't you understand?" Yu Zi tilted her head and pointed to her cheek again. "This mark appears naturally when the body reaches its limit, and it can forcibly enhance physical fitness."

With a time gap of several hundred years, the Demon Slayer Corps suffered the untimely death of the Marked Swordsman, and the purges by Muzan and Kokushibo resulted in a significant lack of records about the Sengoku period within the Demon Slayer Corps.

Even the Ubuyashiki family only knew about the existence of the mark.

Yuko patiently explained to everyone: "The Crimson Blade is a technique that uses grip strength to turn the blade red. After the blade turns red, the Nichirin Blade will have a significant inhibitory effect on the regeneration of evil spirits."

"The so-called 'transparent realm' is a symbol of reaching the pinnacle of martial arts, and it places extremely high demands on the user's breathing techniques and swordsmanship."

"The most direct change after successfully mastering the field of transparency is that you can see other people's body structure with the naked eye, including the flow of blood or the movement of bones."

After speaking a long string of sentences in one breath, Yu Zi slowly exhaled and scanned everyone: "That's roughly it. Did everyone understand?"

"..."

"Ha, haha..." Kanroji Mitsuri chuckled twice, sweat dripping from her forehead. She glanced at the others with a panicked look, only to find that they all looked indifferent.

Spicy! She was the only one who didn't understand!

Giyu Tomioka remained calm: As expected of a Pillar, he's different from me.

Beimingyu Xingming: Namo Amitabha Buddha.

Kyojuro Rengoku: He seems pretty amazing!

Muichiro Tokito: What was he saying again?

Kanae Butterfly: I didn't understand...

Yuzui Tengen: That's ridiculous.

Obanai Iguro: I can't believe it, but it doesn't matter, let's see what Shinazugawa has to say.

After a long silence, Shinazugawa Sanemi began to tremble violently, like a volcano about to erupt.

"What a joke!"

"Stop talking nonsense!"

"What markings! What crimson blade!"

Sanemi Shinazugawa angrily pointed at Ikuko's cheek: "That's just a regular tattoo!"

Pointing to the Nichirin Blade at his waist: "An ordinary Nichirin Blade!"

"And what about that transparent field? How could a human possibly see through another person's body structure!"

Yuko nodded gently, as if receiving criticism and education, waiting for Shinazugawa Sanemi to finish his rant. Suddenly, she reached out to Shinazugawa Sanemi and grabbed both of his wrists.

"..."

The two remained still for a moment, and then Shinazugawa Sanemi's defenses were instantly breached, as if he had been tainted by something filthy.

He yelled, "What do you think you're doing, woman?!"

Yuko quickly pulled down his sleeve to cover her hands.

"Want to try?"

"Huh?" The veins on Shinazugawa Sanemi's forehead throbbed continuously.

Yu Zi smiled slightly: "Rock, paper, scissors, let's see if I can guess what you'll choose."

With dead fish eyes, Shinazugawa Sanemi gritted his teeth and said, "Fine, let's try!"

He hung his hands at his sides, hiding them in his sleeves, and looked at Yuko with disdain: "Guess."

"Stone."

Sanemi Shinazugawa's eyelids twitched slightly.

"Scissors."

"..."

"cloth."

"..."

"Oh, you're cheating. Extend your right thumb and little finger, and raise your left middle finger."

"..." Shinazugawa Sanemi's eyes twitched violently twice.

Koba's pupils contracted slightly; she had actually figured it out.

He could understand if it were just a choice of three, but how did he manage to cheat like this? Was it really something he saw with his naked eye?

Yu Zi smiled slightly: "Do you believe me now?"

Sanemi Shinazugawa's face twitched twice, looking defiant.

Yuko sighed, and her gaze toward Shinazugawa Sanemi became subtle.

Sanemi Shinazugawa exploded: "What kind of look is that?!"

Yu Zi shook her head helplessly: "I explained it to you so patiently, and what did you do?"

"I've told you, but you won't listen; you listen, but you don't understand; you understand, but you don't do it; you do it, but you do it wrong; and you don't admit your mistakes..."

How am I supposed to explain this to you?

Yuko discovered that this person was extremely hostile towards her, more so than towards anyone else.

With Kagaya Ubuyashiki's help, most of the others had lowered their guard to some extent, but this guy hadn't at all.

"..."

The atmosphere at the scene became tense for a moment.

"Pfft." Kanroji Mitsuri couldn't help but laugh out loud, then immediately covered her mouth and hurriedly hid behind Kocho Kanae. Only after confirming that no one had noticed her did she dare to peek out again.

Sanemi Shinazugawa opened his mouth, his face instantly turning red.

Yu Zi suddenly blurted out, "Do you want to cry?"

"Who wants to cry!" As if he had stepped on a cat's tail, Shinazugawa Sanemi bristled.

"Mr. Shinazugawa." Suddenly, a gentle female voice rang out.

Shinazugawa Sanemi looked impatiently toward the source of the sound, his expression softening slightly: "...Wh-what?"

Ok?

Yuko tilted her head.

Kanae said gently, "Four years ago, I was on the verge of death in my battle with Upper Moon Two, and it was Ms. Ikuko who saved me."

Because this matter was so strange, she only told her lord about it.

Everyone who heard Kanae's words looked at Ikuko in surprise.

Sanemi Shinazugawa's lips twitched, but he sat back down without saying a word.

Oh ~

There is something.

Yuko's eyes held a subtle expression.

Kagaya Ubuyashiki's voice rang out at just the right moment: "There are indeed clear records within the Demon Slayer Corps regarding the Demon Mark."

"That is a kind of ability to borrow lifespan from heaven and burn lifespan to improve the physical fitness of the holder."

Although it sounds far-fetched, since it was said by our lord, it must be true.

"As for the markings, I can also vouch for them." A cool yet gentle voice rang out from outside the room. The door to the room opened, and Butterfly sat down at the last seat with a smile on her face.

Everyone looked at her with a puzzled expression: "Proof?"

Shinobu Kocho nodded slightly, pointing her slender white index finger to her cheek: "That's exactly it."

Under her focused attention, the blood-red butterfly pattern gradually emerged.

"!"

"Before you all returned, I had already successfully awakened my Demon Slayer Mark under Yuuko's tutelage," Shinobu Kocho said slowly. "In this state, my strength and speed have been greatly enhanced."

Obanai Iguro was stunned for a moment. No wonder he felt that Butterfly's strength had increased.

It turned out to be true.

Even Sanemi Shinazugawa's expression calmed down slightly: "Then, how do we activate this thing?"

Yu Zi looked at him calmly: "It's simple, just get beaten up a few more times."

"Huh?" Shinazugawa Sanemi's eyes twitched. He had ample evidence that this woman wanted to settle a personal score.

Seemingly seeing through his simple-minded thoughts, Yu Zi said calmly, "I said from the beginning that this is a skill that can only be mastered when the body reaches its limit."

"That means the same goes for everyone else."

Of course, there was one thing she didn't say.

In other words, the resonance and contagiousness of the markings are not something that can be easily activated by simply reaching the limits of the body; there also needs to be a source of infection.

It will take some time.

Shinobu Kocho also spent a long time with her.