Demon Slayer: My breathing technique went awry after Nezuko pushed me down.

But until it gets replenished, it's basically a dead dog.

Shirakawa Yu casually pulled him closer.

After calmly and deliberately retrieving the test tube—

A casual slash.

As if pruning flowers and plants, his head was severed without any ripples.

Once again, the body was dismembered, and Lei, who had been motionless for quite some time, stared wide-eyed.

But he could only utter two words in resentment.

"asshole......."

He stared intently at the small branches and beads behind Shirakawa Yu, his eyes showing no fear of death.

It was all resentment over the betrayal.

Watching the exhaustion gradually turn to ashes, Shirakawa Yu calmly raised his head and looked at Kocho Shinobu.

"Ask the second question."

Seeing how easily Shirakawa Yu had dealt with Lower Moon Five.

Shinobu's eyes flickered slightly.

If she didn't understand Shirakawa Yu's purpose in taking the demon away before...

So, this purpose is then disguised as an experiment.

As someone who also believes in science, Shinobu Kocho understands.

She glanced at the little branches and beads that seemed to have been reborn, shook her head, and said nothing more.

"The second question."

"What's the deal with your ability to bind evil spirits?"

Bai Chuanyu also made no attempt to hide the Crimson Arrow.

They continued with the same old rhetoric.

"This ability is something I acquired two months ago through consuming food."

"I have the constitution of a demon eater, and it is probably because I also have a rare bloodline that the two have combined or mutated."

"You can steal the Blood Demon Art of evil spirits by eating them, but this is the only time for now."

These words stunned not only Shinobu Kocho, but also Giyu and Kanao.

The little branches and beads behind them, who were celebrating their newborns, were all stunned and stiffened... taking two steps back!

Then they grinned and hugged each other tightly.

"A ghost...?"

"plunder......?"

"Blood Demon Art...?!"

Seeing Shinobu's eyes shift from blank to fanatical, the large anesthetic needle in his hand stirred once more.

Shirakawa Yu also quickly took two steps back.

"Stop! I won't be a test subject!"

"I don't need much—"

Just as Shinobu was about to offer some advice, she suddenly felt a small hand grab her arm.

Looking back at the pitiful Kanao, she sighed helplessly.

This girl is either emotionless, or... too deeply affectionate...

Shinobu Kocho had no choice but to suppress her desires for the time being... She could always find him later and take a separate sample.

Then the third question was raised.

"Are you serious about Kanao?"

Bai Chuanyu: "???"

Kanao: "???"

Giyu Tomioka: "???"

Tanjiro: "???"

What kind of question is this?!

Shirakawa Yu subconsciously glanced at Kanao—the girl was so panicked she wanted to bury her head in the ground.

"Is it hard to answer?" Butterfly tilted her head.

Having never had any experience in this area before, she was unaware that the question she was asking was strange.

"If it's a difficult question to answer—"

"Seriously!"

Shirakawa Yu took a deep breath.

"Kanao... is a good girl."

Shinobu Kocho nodded, signaling him to continue.

“I spent a few days with her when we participated in the selection process,” Bai Chuanyu said, his tone unusually serious. “She is very quiet, meticulous, and brave. She did not back down when faced with danger.”

"I admire her."

He paused, then looked at Kanao.

"If she's willing... I'd like to be friends with her."

"The better kind."

Kanao lowered her head even further, but the redness from her ears had already spread to her neck.

Shinobu Kocho looked at Shirakawa Yu and remained silent for a few seconds.

“One last question—” she said, her tone becoming much more serious.

"Kawaba-kun, what is your goal?"

Shirakawa Yu looked at her.

They got serious.

The reply was very simple, just three words.

"Kill Muzan."

Hearing this, Butterfly suppressed a laugh.

This smile is different from the ones before.

He was genuinely laughing.

Her smile was gentler than ever before.

“Kawayu-kun~” she said softly, “You are a really interesting person.”

Shirakawa Yu: "...Is this a compliment?"

"Of course I'm complimenting you!"

She paused, her gaze sweeping over Kozuko, Kozuko, and Kozuko.

"However... your current situation seems a bit difficult to handle."

As she spoke, she assumed a fighting stance, but she also flicked the blade to reduce the amount of anesthetic at the tip of the sword.

At the same time, she looked at Yi Yong.

Seeing this, Yi Yong nodded silently and raised his blade.

Seeing this, Shirakawa Yu sighed.

Women are so fickle!

She thought she had persuaded Shinobu Kocho.

Unexpectedly, we still have to fight.

But this time, without the hindrance of the tired, all the Red Arrows were withdrawn.

Even if he were to face two pillars at the same time, he was confident he could put up a fight.

He extended the blade, and the pink aura reappeared.

The next second, Shinobu Kocho and Giyu Tomioka moved at the same time!

Clang!

The moment the swords clashed, Shirakawa Yu's eyes widened suddenly!

Then......

A swear word slipped out!

"I boil it!"

Not only him, but almost everyone present was stunned at this moment.

Including volunteers!

"Ren! What are you doing!?"

Looking at Shinobu Kocho, who was blocking his way.

Yi Yong was completely stunned.

Wasn't this supposed to be an attack on my junior brother?

Why are you cutting me?

The two long swords were pressed tightly together.