Crossover Anime: Starting with Bankai from Demon Slayer

"I'm sorry... please take care of this child for me!"

"Hey! Who are you? Don't cause trouble for others!"

"Please, his name is Asuka...please!"

What's that sound...a woman? Where am I?

In its hazy state, the bird felt as if its consciousness was a lump of paste, immersed in darkness from which it could not stretch out its limbs, and could not see anything in front of it at all.

He could only vaguely see the figure of a woman with jet-black hair, who awkwardly pushed him into the arms of an old woman and then ran away into the distance like a madwoman.

"I'm sorry... Asuka... I'm so sorry!!"

After she ran far away, a group of swordsmen dressed in black kimonos began searching house to house for something. Finally, under the leader's order, they chased after the woman in the direction she had gone.

As the swordsmen departed, Asuka's consciousness gradually blurred, growing heavier and heavier until it sank into the depths of darkness.

I don't know how much time has passed; it may be a moment, or it may be an eternity.

Feiniao suddenly felt a piercing pain, and a series of ferocious and terrifying scenes of fighting flashed back and shattered before his eyes. Then he suddenly opened his eyes.

"Old man!"

He sprang to his feet, his whole body aching as if it were falling apart.

The bird was breathing heavily, observing its surroundings with suspicion and uncertainty.

This is a small Japanese-style room with simple and rustic furnishings. There is a tatami mat with soft cotton mattress on the floor, and a thick, warm quilt wrapped around you, which still has the fragrance of sunshine.

The air was filled with the bitter smell of wintergreen herbs on the medicine shelf, probably coming from the small cabinet in the corner, on which sat a bowl of dark-colored herbal medicine that had not been finished.

Where is this...? The bird was a little panicked and subconsciously reached for its long sword, only to find that it was all alone.

He looked around anxiously, and finally spotted the broken knife leaning against the wall alone in the corner behind him.

Asuka struggled to get up, trying to hold the long sword to his chest, but the intense pain and tearing sensation all over his body made him twitch his brow, and a fine layer of cold sweat seeped from his forehead. The strength he had just gathered instantly dissipated.

He collapsed to the ground, struggling to stay upright, and slowly crawled toward the long sword.

The most important lesson Rukongai taught him was: don't easily believe in kindness without a reason.

He was tortured and ended up in this godforsaken place because he believed the lies of those men in black, all for a few meals and a little water...

If he hadn't been too weak to resist, he wouldn't have let the old man help him, even if the old man was genuinely kind.

In this dog-eat-dog world, if you don't want to be eaten, you have to become covered in thorns.

Click! But before he could even climb to the side of the long sword, the door to the Japanese-style room was pushed open.

"Hey, what's going on?"

"I thought something happened when I heard the noise, but you can't move around! Your injury is quite serious!"

A boy wearing a light green kendo uniform, who looked a year or two older than him, exclaimed in surprise. Beside him, a girl with long, black hair, carrying a steaming ceramic bowl, also rushed towards Asuka with concern.

The girl's clear eyes were filled with worry. She gently placed the ceramic bowl on the tatami mat and tried to help the struggling bird sit up. "You've only just stopped bleeding, lie back down quickly!"

Asuka froze instantly, not because of the girl's concern, but because he saw the light green kendo uniform on the boy who had intruded.

Although the colors were different, it did indeed look very much like the black-clad swordsman who had captured him from Rukongai and subjected him to inhuman torture! This instantly set off alarm bells in his mind!

"Get out of here!"

He roared, and the bandage on his shoulder blew out crimson blood from his violent arm swing.

Despite the excruciating pain, Asuka suddenly curled back, pressing her back firmly against the wall, glaring fiercely at the two intruders.

"Who are you! Where am I?!"

His gaze was filled with undisguised hostility, as if he would fight her to the death if the girl came any closer.

The boy in the kendo uniform was bewildered by the sudden hostility. He stopped in his tracks and stared at the girl in front of him in astonishment.

"You bastard!"

They hadn't expected the bird to be so resistant to their kindness. The boy was a little angry and wanted to say something more, but the girl, who had quickly stood up, tugged at his sleeve, signaling him to calm down.

The girl took two steps back, maintaining a safe distance, and said softly, "Please don't be nervous, we mean no harm..."

"This is Hayama, a place specifically for training swordsmen to fight demons. My name is Rika, and this is Kenichi."

She pointed to the wisteria pattern on the wall. "The Demon Slayer Corps members found you severely injured and unconscious in the snow forest and brought you here."

"Demon Slayer Corps?" Asuka heard this unfamiliar term, but the wariness in his eyes didn't lessen. He kept his eyes fixed on Kenichi, who looked impatient. "What are demons?"

"What? Weren't you brought into the breeding facility as an exception because you killed a demon?" Kenichi chimed in. "They found human remains and strong traces of demonic energy. Based on the signs of battle at the scene, they determined that you killed a demon."

At this point, Kenichi added, "Oni are man-eating monsters! They're immortal and only sunlight and the Nichirin Blade can kill them! I really don't know how you managed to do that!"

Monster... Now Asuka understood.

It seems that the twisted, cannibalistic monster is the ghost these people are talking about.

However, upon hearing Kenichi mention another person's remains... Asuka's eyes dimmed, and the hostility emanating from her lessened slightly.

Sensing the emotional fluctuations in Fei Niao, Li Hua sighed softly and picked up the bowl of medicine again.

"Regardless, you need to get proper treatment and rest now... Your injuries were very serious; it's a miracle you survived. You need to cherish your body..."

Pear Blossom quietly placed the medicine in front of Flying Bird, without forcing him. Flying Bird, in turn, watched Pear Blossom warily, showing no intention of taking the medicine.

The atmosphere inside remained awkwardly frozen until Kenichi, somewhat annoyed and impatient, spoke again.

"Hey! I'm telling you! Sister Pear Blossom went to all that trouble to brew this medicine for you, and instead of saying thank you, you're looking at her like she's a thief!"

"...Let me go." Asuka didn't know what the truth was, but he just wanted to leave this unfamiliar place, even if he was covered in wounds.

"You little brat...!!"

Just then, a deep, resonant voice with a resolute quality came from the doorway.

"Kenichi, what's all the noise about?"

The three of them turned their heads at the same time and saw a tall figure standing outside the room.

He was an old man around fifty years old, with a face as hard as if carved by a knife and axe, and short hair as thick as steel needles.

He wore a simple dark green kimono with a dark haori casually over it. Deep nasolabial folds and scars between his brows left the marks of time on his face. His empty left sleeve was neatly tucked into his waistband.

The old man simply stood there, making no threatening or aggressive moves, yet it sent chills down Fei Niao's spine.

It was that feeling again... an extreme sense of oppression and unease, as if this person, just by standing there, was a sharp blade yet to be drawn, ready to unleash terrifying power at any moment!

Upon seeing the old man, Kenichi, who had been somewhat agitated, blushed instantly, like a chick being choked, and quickly lowered his head with reverence and respect.

"Teacher Arashizaki!"

Pear Blossom quickly bowed and greeted her, "Teacher."

The old man scanned the room with his deep, calm eyes and immediately understood what had happened.

He did not reprimand Asuka for her rudeness and hostility, but simply waved his hand gently, signaling Kenichi and Rika to leave the room first.

Then, he calmly walked into the Japanese-style room alone, closed the door, and slowly walked to Asuka, where he sat down cross-legged.

"name?"