Crossover Anime: Starting with Bankai from Demon Slayer

A hoarse, sticky voice rang out above Fei Niao's head, accompanied by a sense of crisis that made his hair stand on end.

Almost instinctively, he quickly rolled forward awkwardly, getting covered in snow and mud to create distance between himself and the sound above him.

When he nervously looked up, he froze on the spot.

It was a thick treetop hanging upside down overhead, with a humanoid outline.

It is described as humanoid because its limbs are unusually long, like pieces of bamboo sticks pieced together. The fingers and toes at the ends are sharp, twisted black claws, deeply embedded in the bark, with scarlet marks still remaining on them.

The face, which could not be called a human face, was distorted and displaced, revealing two rows of white fangs, and it grinned menacingly at the bird.

"What a lucky day! I actually got to eat two meals!"

Virtual? No, it's not!

In Asuka's hazy memory, she once heard an adult in Rukongai say that there were terrifying monsters called Hollows that devoured humans and wandering souls, but they were definitely not like this!

Escape! We must escape!

The instinct for survival pounded fiercely in the homeless child's heart, constantly urging him to escape from here!

Just like when you escape the guards' batons or flee from the thugs' territory, isn't it perfectly normal to run away when you encounter an enemy you can't handle?

I must live! No matter what, even if I have to live like a dog, I will live on at all costs!

Go back there and get revenge on that weirdo with glasses!

But for some reason, another, even more intense emotion was pulling him back.

The bird trembled all over, clutching its tattered cotton coat tightly, and uttered a few words in an icy tone:

"The old man...was he killed by you?"

"Um?"

The monster hanging in the tree turned its blood-red vertical pupils in confusion, seemingly not expecting that the skinny little brat opposite it would turn around and question it with such a question.

It licked its drooling lips, teasingly and playfully, "Scared stiff? How about I..."

"I'm asking you, did you kill the old man?"

The bird's gaze met those blood-red vertical pupils, within which surged a flame called rage.

Repaying a debt of gratitude? Perhaps not.

But for Asuka, who was used to the turmoil and deceit of Rukongai, and the cold plunder and beatings of another world, the concern shown by the stern-faced old man when he brought him rice porridge was something he had never experienced before, and it was the most precious thing in his heart.

The anger of being deprived of his treasure, mixed with immense sorrow and a trace of guilt, overwhelmed the instinct to flee.

"Hehehe..." With a few eerie laughs, the monster suddenly flipped down from the tree, kicking up a cloud of snow. "So what? That old thing's flesh is bland... not as flavorful as a fresh little thing like you!"

"..."

The bird fell silent, and its trembling stopped.

He untied the sash on his chest, pulled the damaged longsword from his back to his front and raised it high, gripped the hilt tightly, and used his thin arm to pull open the scabbard!

Clang—!

A radiance belonging to a different world shone from the blade, instantly illuminating the dark snow forest!

"What the hell..." A hint of confusion flashed across the monster's distorted features, as if it didn't understand what was happening, but it could sense that the aura of the brat opposite it was somewhat different...

As the light faded, the scabbard in Asuka's hand disappeared, leaving only a rusty longsword, tightly gripped in his hand.

Upon seeing this, the monster burst into laughter, "Hahaha! I thought it was something special, but it turns out it's just a broken knife that it picked up from somewhere!"

"Kid, you can get hurt playing with adult toys!"

With that, it suddenly leaped off the spot and charged towards the bird with a ferocious grin!

Asuka mustered her courage and stood still, gripping the broken sword that had come with her to this world, staring intently at the direction from which the monster was charging!

"Go to hell, brat! Remember to steal a good knife in your next life!"

scoff!

Sharp claws easily tore open the bird's thin cotton coat, and the dry straw stuffing inside burst open in the cold wind, flying everywhere with the swirling snowflakes.

Immediately following was a burning, stinging pain as if the skin on my chest had been ripped open.

"....!" Asuka grunted. Although he managed to dodge the claw thanks to his instincts honed over years of training with sticks, the immense impact still caused him to stagger and nearly fall.

At the same time, he didn't let this opportunity slip by!

Oh!

Similarly, taking advantage of the monster's charging speed, Fei Niao gritted her teeth and slashed back, using her broken sword to cut a gash in its body!

"Well!"

Although the broken knife looked rotten, it was exceptionally sharp, and with just one strike, it ripped open a huge, bloody gash in the monster's abdomen!

Dirty blood gushed out, and intense pain spread throughout the monster's body.

"Ouch!!!"

It's a demon, a man-eating demon! I've encountered many hunters and mountain people, and I've been injured by their sharp axes and short bows before, but I've never felt such pain!

This caused it to scream in agony, and it angrily lunged at the bird again, but the bird used the momentum of the blade to roll on the ground and fall awkwardly into the thick snowdrift in front of it.

With his long sword planted firmly on the ground, the bird trembled as he propped himself up, enduring the stinging pain in his chest where he felt the ice and snow mingling with his own, as he looked at the monster whose waist and abdomen he had ripped open.

The creature was pressing its twisted claws against the wound, staring at him with a ferocious expression.

"You brat! I'm going to tear you to pieces! I'll chew you up bit by bit!"

With its roar, a scene that chilled the birds to the bone unfolded.

The gaping wound was now writhing strangely! The muscles at the edges were like a bunch of maggots twisting together, desperately trying to pull themselves closer and contract!

In just a few breaths, to the astonishment of the bird, the wound had healed!

The demon saw the terror in the bird's eyes, grinned, and let out a triumphant laugh. "Hehehe... How about that, kid? You think your junk can kill me? Don't dream!"

With a sinister grin, the demon charged forward once more!

This time, it realized the sharpness of the broken knife and no longer intended to toy with its prey. Instead, it planned to take advantage of the bird's shock and tear it to shreds!

Although Asuka was shocked by the scene and even felt a sense of defeat at being unable to win, he did not want to give up. With a gloomy face, he dragged his broken sword and faced his opponent!

"act recklessly!"

The demon spread its arms, as thin as bamboo poles, as if wielding two giant scythes, and slashed at the flying bird from the left and right!

Asuka lowered her body, trying to use her small size to dodge the attack, but she underestimated the extent of the demon's limbs' contortions and was caught out of her way!

scoff!scoff!

The demon's arm came crashing down as if it had been twisted alive, followed by two tearing sounds that made the bird feel excruciating pain! Even though he had dodged the first wave of the attack, the demon's claws still left two deep, bone-revealing wounds on his back!

A sharp pain shot through his body, and two jets of blood shot into the sky, splattering onto the tongue of the demon that was licking its lips.

"Damn it!" Asuka's vision went black, and she almost fainted.

But he gritted his teeth and, using the momentum of falling forward, slashed his long sword down hard at the demon's left leg!

puff!

The blade cleaved through flesh and blood once more, this time even severing the demon's leg bone, causing it to stumble and fall to the ground!

"Ugh!! That damn brat!!"

After the bird fell, it didn't dare to catch its breath. It rolled and scrambled to its feet and ran forward desperately.

He turned his head away, his face extremely pale.

In his gaze, the demon's leg, severed by the long sword, began to writhe and heal once more...

That was reckless... Is this something I can defeat?!