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

Yoriichi took the Nichirin Blade from Yuuko's hand in surprise. He gently wiped the blood with his hand, and it seemed to be coated with a layer of paint that could not be wiped off.

It has a similar color to the Crimson Blade, but its popularity is completely opposite.

It's cold.

He had noticed it when Yuko smeared blood on his wound; it felt as cold as ice water.

Yuko explained, "As long as it's not exposed to sunlight, it can stay attached for a full three days."

Blood Demon Arts are similar to superpowers and spells, and are often the fundamental reason why evil spirits are stronger than humans. In the face of all kinds of strange and wonderful Blood Demon Arts, even the regenerative ability of evil spirits, which is different from that of humans, has to take a backseat. The only thing they fear is the sun.

Blood Demon Magic loses its effect when exposed to sunlight.

Yuko hadn't tested it, but the Blood Demon Art was an instinct etched deep into the demon's brain, something one could understand without testing.

After the introduction, she raised an eyebrow and boasted, "Impressive, right?"

“…Impressive.” Seeing that Yuko was the same as before, Yoriichi’s lips unconsciously curved into a smile.

Yuko suddenly asked, "By the way, brother, do you have any contact with Miss Tamayo?"

Yoriichi shook his head.

His interactions with Tamayo were limited to the day he defeated Muzan; he never saw her again after that, let alone contacted her.

"I see..." Yuko sighed with some regret.

It seems that Tanjiro met Tamayo in Asakusa in later years, but this is still the Sengoku period, hundreds of years before the Taisho era. Who knows where Tamayo was at this point in time?

It seems that getting a government job isn't so easy anymore.

She should just stay home and live off her parents; at least she won't starve.

Moreover, with her Blood Demon Art, Yoriichi's wounds could heal quickly.

Wait a minute, it seems she accidentally invented a perpetual motion machine.

As Yuuko stared at him intently, Yoriichi felt a chill run down his spine for no reason, a feeling he hadn't experienced since the Demon King.

Just as he opened his mouth to say something, Yuko spoke again: "Brother, do you still remember Tanji?"

Yoriichi was slightly taken aback. Although he didn't know why Yuuko mentioned Tanjiro at this moment, he still nodded.

"of course."

The place where Tanji's family lives is the place where he and Shi once lived.

Yu Zi smiled and said, "Let's go over there sometime and see how they're doing."

While you're at it, look for the blue spider lily.

The most likely reason she was able to break free from Muzan's control is that she accidentally ate the Blue Spider Lily while staying at Tanjiro's house.

Nezuko seems to have overcome her weakness to sunlight later in the story, but she is still unsure if she can overcome it completely.

After all, Nezuko didn't seem to have overcome the sunlight from the beginning, and her family had lived there for hundreds of years. Perhaps their genes mutated from eating the same food for generations, resulting in Nezuko being an exception.

How many meals does she eat?

Yuko felt it was necessary to undergo a course of treatment to consolidate the results.

Upon hearing Yuko's words, Yoriichi was lost in memories.

The scene of Tanji's family warmly welcoming them years ago seems to be still vivid in their minds.

After a long pause, he nodded.

"it is good."

……

It was a warm spring day, and the two visited Tanji's family in the evening.

"Mr. Yoriichi, Ms. Yuko, it's been two years!" Tanji brought over tea, while Akiko was in the inner room coaxing the child to sleep.

Upon seeing his benefactor again, Tanji's face was filled with joy.

Upon entering the house, Yuko removed her straw hat, sat down opposite Tanjiro, and bowed slightly.

"I'm so sorry to visit so late."

Because Yuko wasn't sure if she had overcome her weakness to sunlight, she had to visit at night.

Although she could shrink like Nezuko and act out a Sengoku-era version of Demon Slayer's sibling relationship with Yoriichi.

But she was too ashamed to be carried by Yoriichi like a child.

Tanji quickly waved his hand, "No, no, Miss Yuko is too kind..."

Tanji suddenly stopped speaking, his eyes drawn to Yuko's peculiar eyes illuminated by the oil lamp.

The atmosphere froze for a moment, just as Tanji's wife, Zhu Miko, came out from the inner room.

She wiped the cold sweat from her forehead: "Finally, I'm asleep."

Yu Zi smiled and looked at her: "It must be hard to get a child to sleep, right?"

Zhu Mizi smiled and said, "Yes, that child is too lively."

"They are very energetic even at night."

After that, Zhu Mizi gave birth to another son, who was still an infant shortly after birth.

"Mr. Yoriichi, Ms. Yuko, please stay at my place for now, it's so late." Tanjiro had some doubts, but he didn't pay them any mind.

"Then excuse me."

Tanji prepared a room for the two of them to sleep in.

……

The next morning, before dawn, the brother and sister got up early and went to Shi's grave to sweep the tomb.

While Yoriichi was sweeping the grave, Yuko circled around Shi's grave, looking around.

Tweed?

Where are the flowers?

Yoriichi watched as Yuko wandered around in circles, his face filled with confusion.

Yu Zi frowned. "Don't flowers bloom in spring?"

She thought back to when she came two years ago, it seemed to be during...summer.

Moreover, the flower seemed to bloom suddenly. If it existed before they arrived, Yuko couldn't possibly have missed such a unique flower.

It blooms suddenly, and then fades just as quickly.

No wonder Muzan has been searching for so many years without finding it.

It seems she can only try her luck here in the summer.

Thinking of this possibility, Yuko sighed.

As dawn broke, a pale white light appeared in the distance.

The brother and sister returned to Tanji's home.

Tanji happily waved to the two of them from the doorway: "Mr. Yoriichi, Ms. Yuko, breakfast is ready."

"This is troublesome." Yu Zi walked into the room in a few steps, avoiding the sunlight that was streaming in.

Zhu Mizi served the food, and the table was bathed in sunlight.

Yoriichi thoughtfully ladled some food into a bowl and handed it to Ikuko, who was sitting in the corner of the room playing with Tanjiro's daughter, Akane.

Tanji and Zhu Miko exchanged a glance, somewhat puzzled.

Yuko gently shook her head.

Food is the most precious thing for ordinary people in this era. The Tanji family makes a living by chopping wood and making charcoal, which is already difficult enough.

She doesn't need it anymore, so there's no need to waste it; it's better to let others have their fill.

It's worth mentioning that the Tanji family's house looks quite nice because they were rewarded for saving the daimyo's wife and daughter in the mountains.

Seeing Yoriichi return, Tanjiro couldn't help but ask, "Mr. Yoriichi, what's wrong with Ms. Ikuko...?"

Tanjiro possesses the same gentleness and attentiveness as Tanjiro, which is why he noticed Ikuko's unusual behavior.

Yuko's transformation into a ghost wasn't significant, but her peculiar eyes and nail color still appeared somewhat eerie.

When Tanjiro asked her question, Yoriko instinctively looked at Ikuko.

Tanji and the other two also turned their gazes toward them.

Yuko held Zhu Mili in her arms and teased her, keeping a smile on her face: "Let's eat first, I'll explain to everyone after dinner."

People in this era were not as enlightened as those in later generations.

Like Namiko, after learning that Ikuko had become a demon, she was still so frightened by Ikuko's actions that she punched and kicked her.

But the Tanji family... might be different.