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

Creating the Star Breathing technique may just be a joke, but after mastering the five major breathing techniques, Yuko has been searching for the breathing method that best suits her.

The creators of the five breathing techniques all created their own breathing methods based on their own swordsmanship, under the guidance of Yoriichi.

In other words, it's not about adapting the breathing method to create the sword shape, but rather adapting the sword shape to create your own breathing method.

This is completely opposite to the swordsmen of later generations who developed new sword types based on breathing techniques; the first generation was the complete opposite.

Therefore, Yuko had already begun to ponder the design of the sword shape.

The inspiration for her breathing technique came from her most proficient techniques: water breathing and wind breathing.

The sword shape, created based on the breathing techniques of water and wind, is almost a perfect fit for the Snow Breathing, which inherits the advantages of both techniques.

"Snow Breathing - First Form: Tornado!"

As Yu Ziqing's cold voice rang out, the surrounding blizzard howled even more fiercely.

A giant white dragon made of wind and snow swept upwards, tossing the evil spirit high into the air.

The biting wind, like blades, slid across the demon's body, and in the blink of an eye, countless tiny wounds tore open on its skin.

Before he could react, the deadly, cold voice rang out again.

"Snow Breathing - Second Form - Snow - Flying Snowflakes".

A flurry of snowflakes obscured the view before him. A swordsman, wielding a snow-white blade and bearing a strange mark on his cheek, suddenly appeared from the snowflakes, growing larger and larger in the eyes of the demon.

Patterns? What are these?

Before he could think, the world spun around him. When his vision returned to normal, Yu Zi's light figure was suspended upside down in his eyes, her toes barely touching the ground.

The demon's pupils trembled violently; had it been beheaded?!

呲~

Yuko never showed mercy when dealing with such evil spirits. She pierced the spirit's head with her sword, and the spirit quickly began to disintegrate, head and body at the same time.

The weather, which was originally affecting her breathing, eventually became an aid to her. The cold air flowed through her lungs, and her brain seemed to become transparent, making her clear-headed like never before.

"Whoo~"

Yuko was panting heavily, the heaviness in her body constantly eroding her willpower.

If it weren't for the chill of the cold air penetrating her lungs, she probably would have fainted already.

With her last bit of willpower, Yuko dragged her badly injured body back to the temple and pushed open the broken door of the main hall.

The blizzard swept in, and the girls who had been abducted by the evil spirits huddled in a corner of the main hall, looking towards the door in panic.

Yu Zichang breathed a sigh of relief, then his vision went black, and he collapsed to the ground.

The girls recognized who it was and quickly gathered around.

With just a slight touch, she exclaimed, "So hot! Her body is so hot!"

A strong-willed girl of about fourteen or fifteen years old quickly helped Yuko up.

"Quick, close the door and help her to a corner."

Everyone quickly helped Yu Zi to the corner of the wall.

"It seems she killed that monster."

"What should we do? There's no way to get down the mountain in this weather. She has a high fever; she'll die if this continues."

A girl sat down against the wall, hugged Yuko, and called out to the crowd.

"Come closer."

Everyone immediately understood what she meant and crowded around Yu Zi.

"Xiaoqi, come here too."

The girl called Xiaoqi and Yuzi were surrounded by the crowd in the middle.

……

So warm.

As Yuko slept soundly, she felt as if she were on a warm, soft bed, just like the warmth of lying in bed on a winter morning.

She didn't know how much time had passed when Yuko's eyelashes trembled slightly, and she groggily opened her eyes.

The first thing I saw was the young child in my arms, the bloodstains on his clothes already congealed, and he was fast asleep.

Are you awake?

A gentle voice came from behind her. Yu Zi subconsciously turned around and realized that she was surrounded by a crowd.

They were using their bodies to keep warm.

Being protected by a group of people, Yu Zi felt both touched and a little awkward. She moved slightly, and her body immediately started to ache.

Are there any aftereffects of sun breathing?

Yuko is quite adaptable to other breathing techniques, and even if she forcibly changes her breathing technique during a sword-style execution, there will be no problem.

Yuko's actions woke up the other girls.

"Are you okay?"

"Thank you for saving us."

Everyone showered Yuko with praise.

The woman sitting behind Yuko, hugging her, reached out and gently stroked her forehead.

"You had a high fever before, but thankfully it's gone down now."

fever?

She did feel her body was burning hot before, which was probably because in an extremely cold environment, the brain sends incorrect signals, causing all the blood and heat to be sent to the brain.

This is also why people take off their clothes when they freeze to death.

"Cough cough~" Yu Zi couldn't help but cough twice.

I still have mild physical discomfort.

Yuko handed the girl in her arms to them and looked at the weather outside the window.

Night has fallen, and the sky has cleared.

"Let's go, I'll take you home." Yu Zi pushed herself up, her body still a little uncomfortable, but she was still able to move around.

Upon hearing the words "go home," the girls finally felt completely relieved and burst into tears.

It's only natural that ordinary people would be afraid when they encounter such ugly monsters.

Yu Zi introduced herself to everyone, calmed them down, and then led them down the mountain.

Arriving at the foot of the mountain, we saw a woodcutter sitting at the doorway, axe in hand, as if he had been sitting there all night.

Upon seeing the figure descending from the mountain in the distance, the woodcutter trembled slightly, his face beaming with uncontrollable joy, and he hurriedly went to greet him.

He walked faster and faster... then slower and slower...

The joy on his face turned into confusion at that moment.

The man rushed forward, grabbed a girl by the shoulders, and pleaded with her: "Where's Zhizi? Where is Zhizi?!"

Yuko paused for a moment, her eyelids drooping slightly.

The girl, whose shoulders were gripped by the man, twitched her lips slightly: "Zhizi...Zhizi, she was eaten by a ghost."

The man seemed to have all his strength drained away, collapsing to the ground with a numb expression on his face, as if he had lost his soul.

Yuko closed her eyes and turned to leave.

Even if the virus is eradicated, the past pain will not disappear.

The Demon Slayer Corps can destroy evil spirits, but it cannot soothe pain.

The girl holding the girl had previously told Ikuko that her name was Namiko.

Noticing Ikuko's departure, Namiko chased after her.

"that."

Yuko paused slightly.

"Miss Yuko, thank you for saving everyone."

Yuko waved without looking back and disappeared into the town.

……

It was while drinking by the stream that Yuko finally saw her current appearance reflected in the water.

A peculiar red mark extended from her cheek to her neck, its winding shape adding a touch of allure to her already striking appearance.

In the past, this would probably have been very popular, but from the perspective of today's era, it's just plain disfigurement.

If she had awakened her markings earlier, she probably would have had fewer suitors.

“Spots?” Yuko murmured, gently stroking her cheek.

That was something she learned about from a Demon Slayer short video, something referred to as one of the three-piece set.

Only by mastering the three-piece set can one be qualified to fight against Upper Moon and Muzan.

They are, respectively, the Mark, the Transparent World, and the Crimson Blade.

Yoriichi possessed innate markings and a transparent world, and currently only Yoriichi can use the Crimson Blade.

Although he had explained the techniques of the Crimson Blade to everyone, no one in the Demon Slayer Corps except him could do it.

The principle behind the Crimson Blade is to use a strong grip to activate the energy of the sun within the Nichirin Blade, thus achieving the technique of turning the blade red.

It can effectively suppress the regeneration of ghosts and increase their lethality.

Currently, only Yoriichi possesses that powerful grip.

Apart from Yoriichi, no one in the Demon Slayer Corps has mastered any of the three pieces of the set.

So theoretically, she can now be considered the second person after Yoriichi to master the Demon Slayer Mark.

He was even ahead of Iwakatsu.

After carefully recalling the memories that followed, Yuko did indeed feel an improvement in her physical fitness.

After all, Snow Breathing can't restore her immediately.

So, now that she has awakened her markings, can she also wield the Crimson Blade?