I, Umo Tengen bravely venture into the world of Naruto

Butterfly endure.

The only pillar-level swordsman in the Demon Slayer Corps who chose to withdraw from the pillar-level special training.

According to the information provided by the lord, although it is obvious that the reason why the Butterfly Ninja quit the pillar instruction training is to be with a certain guest who was invited by him and chose to come to the Demon Slayer Squad to assist in the "Encirclement and Suppression Plan". Prepare potions.

But in fact, Yu Zhuan Tianyuan, who had experienced the inheritance of the Nine Pillars, knew exactly why Butterfly Ninja quit.

The guest invited by the lord is a female ghost named Zhu Shi.

Although Yu Zhuan Tianyuan didn't know her well, he also learned some important information from the Lord's brief introduction last night.

In addition to being a ghost, Tamashi is also a doctor who is proficient in pharmacology like Butterfly Ninja.

But regarding ghost research, she has a more thorough understanding than Butterfly Ninja.

The lord said that Zhu Shi was a good partner of the Demon Slayer Corps who had kept in touch for thousands of years.

This cooperation is also because she has the same single goal of killing without mercy as the Demon Slayer Squad.

Unlike Nezuko, although Nezuko is now the only ghost in the world who has overcome the sun.

But in fact, Nezuko mostly relies on instinct whether it is words or actions.

Her consciousness is not clear, she just follows the instinct of not eating or hurting people, and must protect human beings.

But Tamashi is different. She has an independent sense of self and is not controlled by Muzan Kibutsuji.

According to what the lord said, she has been a good partner of the Demon Slayer Corps for thousands of years, which just proves that Tamashi is very likely to come from the same era as Onimusuji Muzai.

Ghosts like Zhu Shi have lived in the world for thousands of years.

It's hard to imagine that she would be on the opposite side of Kibutsuji Muzan.

Although Yu Zhuan Tianyuan didn't know if she had ever eaten people or if she was a hidden cruel and ugly evil ghost.

But when Yu Zhuan Tianyuan learned that Zhu Shi was able to transform his body into one that only needed a little blood to survive.

And when he was willing to come to the Demon Slayer Squad alone to help them study drugs together.

Yu Zhuan Tianyuan had already judged that Zhu Shi did not have any malicious intentions.

Walking alone on the cobblestone path in front of Butterfly House.

Yu Zhuan Tianyuan already knew the architectural distribution of Butterfly House.

It's early morning and the sun has just risen.

And in the Butterfly House, apart from the inner room, the only place where you can take shelter and not see a ray of sunlight is... the laboratory where Butterfly Ninja prepares medicines.

Follow the route in memory and walk towards the laboratory.

If nothing unexpected happens, Zhu Shi is definitely in the laboratory.

In the "Encirclement and Suppression without Disaster Plan", the research and deployment of pharmaceuticals is the most critical link.

As for the potion that Butterfly Ninja and Zhu Shi were studying and preparing together, Ukuo Tengen, who didn't know, decided to go and have a look.

The Butterfly Ninja must also be in the laboratory, and after meeting with them, he figured out the function of the medicine.

Regarding Butterfly Ninja, Yuzhuang Tianyuan also wanted to sit down and have a good talk with her...

And just when Yu Zhuan Tianyuan rushed to the laboratory.

In the backyard corridor of Butterfly House, Butterfly Ninja was walking quickly towards the inner room.

Her brows were furrowed and she looked very worried.

Her slender arms were completely covered by Yu Zhi until she reached the door of the inner room and reached out to push open the door of the inner room.

On the originally white arms, at the moment when the door was pushed open, the cuffs of the combined team gathered up, revealing several purple and black wounds.

The wound was the size of a needle tube, and there were purple spots spreading from the exposed blood vessels on the arm.

As an insect pillar, the butterfly ninja cruelly injected the poison he used to kill evil spirits into his own body!

The black and purple arms were hidden under the sleeves of the butterfly ninja again.

She stepped into the somewhat empty inner room and knelt down in front of the only tombstone in the middle of the inner room.

This tombstone is actually the tombstone of her sister, the former Demon Slayer Kanae, Butterfly Kanae.

When Kanae was still alive, Butterfly Ninja's character was actually very serious and unsmiling.

But since her sister died in the battle with evil spirits, she inherited Butterfly House and became the new pillar. In order to strive to become as gentle as her sister, she controlled herself to smile on her face.

In fact, at the end of the day, Butterfly Ninja has always been imitating his sister.

The smile she always wears on her face is just a disguise to suppress her hatred for the evil ghost.

Her character has never really changed, and it remains the same to this day.

Winding II, Tong Mo.

It was a name she would never forget.

She still remembers her sister who was seriously injured and on the verge of death in her arms after fighting with Tong Mo all night that morning.

The sunshine that day was bitingly cold.

It also includes the words her sister said to her while stroking her cheek before she died.

"Shinobu, leave the Demon Slayer Squad..."

"Although you work hard, really hard, but you can't endure it..."

Don't be sad, and don't take revenge for me. I just hope you can be happy and live like an ordinary girl. That's enough..."

They clearly agreed to protect the happiness of others who have not yet been destroyed by evil spirits and kill evil spirits together.

But the sister who made the agreement with her died in the hands of evil spirits just like their parents.

"elder sister--!"

When Kanae died, she had a smile on her face.

But holding his sister who died in his arms, Butterfly Ninja endured unimaginable pain.

After suppressing his grief and burying his sister, the butterfly ninja did not choose to listen to his sister's last words.

She didn't quit the Demon Slayer Corps. After inheriting her sister's haori, she worked ten times harder than before.

Because of his lack of physical strength, he couldn't cut off the evil spirit's neck with a knife.

Then find another way and rely on your own medical knowledge to develop various poisons that can kill evil spirits!

Finally, Butterfly Ninja took over his sister's position and became the new pillar of the Demon Slayer Corps.

From the moment she chose to embark on this path of revenge, she had already made a secret vow in her heart.

No matter what the cost, even death!She must also avenge her sister!

The butterfly ninja sat quietly in front of her sister's tombstone, but the blue veins popping out of the corners of her eyes showed that she was extremely angry at this time.

"Calm down, be calm!"

Looking at the purple color of his wrist exposed at the cuffs, Butterfly Ninja kept warning himself in his mind, and tried his best to control his face and keep a smile.

But those memories just flashed through her mind, as well as the hatred that kept rising in her heart.

The smile she tried hard to maintain looked extremely awkward.

The sound of socks scraping against the floor came from outside the door.

"Teacher, are you back?"

What followed was the call of his stepson, Li Hua Luoxiang Nahu.

I remembered that before the special training under Zhu Zhu's guidance began, Chanel had never taken the initiative and was unable to make judgments on her own.

It was the first time that he proposed to himself the idea of ​​practicing with him.

Butterfly Ninja's purple pupils flashed, and when she heard Shanahu's voice, a happy smile appeared on her face involuntarily.

"it's time……"

The moment Shanahu opened the door and walked in, the butterfly ninja motioned for her to sit down next to him.

And with Chanahu's eyes widening, she said this sentence solemnly.

"Xiang Nahu, let me tell you first how to kill the ghost who killed my sister..."

"Kill!"