Chapter 234: New Butterfly House

Humans typically carry out their daily activities during the day, relying on the light of the sun to accomplish tasks more effectively. Vision is the most important part of human senses.

After that night, the two of them tacitly completed various tasks in Tokyo before finally being able to leave. The main reason was that Kocho Kanae was busy fulfilling her promise to Yuina, securing her freedom and then entrusting a Kakushi to take her to the Butterfly Mansion.

Thanks to the thorough cleanup that night, the Demon Slayer Corps in Tokyo had a much easier time afterward. Li Mo even found time to train several swordsmen.

Humans are not inherently weaker than demons. However, while human swordsmen require rigorous training and discipline, demons only need to consume humans to grow stronger. This is the reason for the gap in strength between the two.

But the potential of humans surpasses that of demons. The problem is that the one who represented the pinnacle of human strength died hundreds of years ago.

Yoriichi Tsugikuni.

Just how far did he push the limits of the human body?

Perhaps the combat doll of Yoriichi Tsugikuni in the Swordsmith Village can give us a glimpse of the strength of that swordsman from the Warring States period.

"Li-san, what are you thinking about?"

"A dead man."

"Huh? A fallen comrade?"

"Something like that. But it was a comrade from hundreds of years ago."

"Come on, Li-san, that's going too far."

Though her words sounded like a reprimand, Kocho Kanae's tone was anything but. Her gentle voice carried no sense of pressure.

He wasn't lying.

He was indeed thinking about Yoriichi Tsugikuni from the Warring States period. If magic were not considered, and it were purely a contest of physical strength and swordsmanship, Li Mo wasn't sure he could defeat him.

Sun Breathing, Transparent World, Demon Slayer Mark…

A genius who, in a world where humans had almost no power, created the Breathing Techniques. Just how high did his talent reach? If he were in a world with an established power system, such as one where "qi" existed, how far could Yoriichi Tsugikuni have gone?

The founder of a system is always worthy of respect. Li Mo, on the other hand, was merely an inheritor.

Creation and inheritance are not the same.

"Kanae-san, is Shinobu staying at the Butterfly Mansion long-term?"

"Yes, Li-san. Two or three years ago, Ms. Tamayo moved into the basement of the Butterfly Mansion to continue her research, and Shinobu has been assisting her ever since.

When Shinobu first heard about cooperating with a demon, her expression was quite amusing. She was clearly angry, but she kept a smile on her face. That child is always like that, stubborn to the core."

Kocho Kanae covered her mouth and laughed.

Li Mo imagined the scene and shook his head.

The two of them were currently on the move. For them, conversing while running was a normal thing. After learning Breathing Techniques, their lung capacity and physical abilities had greatly improved.

In a way, this was a kind of transformation.

Li Mo hadn't studied Breathing Techniques in detail; he simply used them like a black box. Who knows? Perhaps the Breathing Techniques themselves contained some form of mystery. Otherwise, how could they grant such superhuman strength?

Yoriichi Tsugikuni seemed to have transcended humanity, didn't he?

Research, research, research.

When did he become a researcher? Wasn't he supposed to be just a fighter?

If the problem couldn't be solved, then he wouldn't think about it.

---

The Butterfly Mansion.

This term wasn't unfamiliar to Li Mo. The first time he heard of it was in a manga. The second time was many years ago, before he learned Breathing Techniques, when he was rescued by the father of the Kocho sisters after fighting demons in the mountains all night.

But that very night, demons attacked.

That gentle, jade-like man and his frail wife both lost their lives, leaving behind two young children. Naturally, the Butterfly Mansion of that time fell into decline.

Years later, a new Butterfly Mansion appeared in a different location. The doctors had changed, the location had changed, but the responsibility of being a doctor remained the same.

Li Mo stood in front of the Butterfly Mansion.

The area around the entrance looked no different from the Butterfly Mansion in his memories. Even the plaque above the door was identical, with the same patterns and characters as he remembered.

"Kanae-san?"

"That's right, Li-san. We brought the plaque from our old home and used it here. When I went back, I was surprised to find that even though no one lived there anymore, the place was still kept clean."

After the night of the tragedy, the Kocho sisters left their village. Like Li Mo, they joined the Demon Slayer Corps through the recommendation of Himejima Gyomei.

However, compared to Li Mo, the process was much more difficult for the sisters. The inherent physical disadvantages of being female led Himejima Gyomei to initially believe they were unfit to become swordsmen. But they eventually passed the test.

Kocho Kanae was fine; her strength was comparable to many men. But Li Mo knew that her younger sister, Kocho Shinobu, had very little physical strength and couldn't cut through a demon's neck. Her success in the Final Selection at Mount Fujikasane was largely due to Sabito, who, like Li Mo in his time, had nearly cleared the mountain of demons.

"Shinobu is here now? There are quite a few people."

Under Kocho Kanae's guidance, Li Mo entered the Butterfly Mansion. Inside, he could see many women in uniform, whom he assumed were nurses. There were also several injured swordsmen training.

There were a lot of people.

Roughly twenty or so.

"Yes, the Butterfly Mansion is now the designated hospital and rehabilitation center for the Demon Slayer Corps."

Kocho Kanae smiled as she answered Li Mo.

During this time, many people greeted her with titles like "Lady Kocho Kanae." At the same time, they cast suspicious glances at Li Mo, the man who had entered the Butterfly Mansion with her.

No one recognized him?

The turnover rate is still so fast.

In three years, the Final Selection at Mount Fujikasane had been held two or three times. This meant that two or three batches of new recruits had joined the Demon Slayer Corps.

Death and succession were always the main themes of the Demon Slayer Corps.

Li Mo glanced at his haori, which had been sent to him by Oyakata-sama after he learned of Li Mo's whereabouts. However, his Nichirin Blade had not been sent along with it. Was Haganezuka-san working overtime to forge it for him?

Lost in thought, Li Mo used his pondering to ignore the stares directed at him. He didn't like being watched by strangers, nor did he care. To care would be a waste of time.

"Li-san, come here. I see Kanao."

Suddenly, Kocho Kanae grabbed Li Mo's arm and happily called him over.

Following her gaze, Li Mo saw a small girl sitting there.

She was indeed a cute child, but her face was expressionless, devoid of vitality. She looked less like a person and more like a delicate doll.