lower rank four! Mukago!
She didn't have much screentime in the original story, only appearing during the Twelve Kizuki's year-end layoff.
When facing Scum Boss Muzan's girlfriend-like questioning, she couldn't answer, was swallowed whole, and quickly got her lunchbox, earning her the title of the 'Pillar-seeing escape artist sister'.
Mukago appeared here, organizing a group of demons to attack Yuepu Town, all for the rare blood she spoke of.
Among humans, there are those with special blood, which can be understood as the current Rh-negative blood.
Their flesh and blood are a great tonic for demons; eating them can quickly increase their strength.
But... watching anime is just for fun!
Ryosuke was truly put through the wringer in real life!!!
This sister in the original story ran whenever she saw a Pillar, but she didn't run whenever she saw a Demon Slayer!
Moreover, Ryosuke isn't a Pillar yet!
Mukago's overwhelming demonic aura pressed down like a tangible force, as if even the moonlight was stained with a layer of blood.
A Lower Rank Demon's mere presence brought a pressure far exceeding any demon Ryosuke had slain before!
No!
Even if they were all combined, they wouldn't come close!
Strike first, strike hard! I must kill her instantly!
Ryosuke suppressed the tremor in his heart, and his figure suddenly burst forth!
Thunder Breathing, First Form: Thunderclap and Flash, God Speed!
Swoosh!
A lightning flash tore through the night sky, aiming straight for Mukago's head!
With this move, Ryosuke exerted one hundred and twenty percent of his strength, pushing his speed and explosive power to the extreme.
Mukago reacted too slowly and was forcibly dragged tens of meters, but she blocked the impact of the move by guarding her neck with both hands!
"Good speed, but lacking in power!"
Mukago merely smiled morbidly as her left arm instantly broke, then rapidly regenerated with growing flesh!
The newly formed fist struck true, smashing down hard!
Ryosuke's pupils constricted, and in a hurry, he brought his nichirin blade across to block!
Bang!!!
An irresistible force surged through, and Ryosuke felt like he had been hit head-on by a charging giant elephant!
In an instant, his tiger's mouth split open, and his nichirin blade nearly flew from his grasp!
Ryosuke flew backward like a kite with a broken string, crashing through a brick wall behind him before stopping.
"Ugh!"
His internal organs violently shook, and Ryosuke coughed up a large mouthful of blood as rubble and dust fell around him.
Not only was her regeneration speed ridiculously fast, but her strength was also completely overwhelming! She didn't even use a Blood Demon Art!
And she had just digested rare blood, so she was at her peak condition.
Ryosuke could no longer be called unlucky; it was like bad luck's mother opened the door for bad luck—he was completely and utterly unlucky!
Mukago tilted her head, looking at Ryosuke struggling to get up from the rubble, and let out a bell-like laugh.
"Thunder Breathing Swordsman... your blood also seems very special..."
Ryosuke straightened up, unusually sheathing his nichirin blade.
Seeing this, Mukago laughed mockingly.
"What? Do you know you can't win, and you're surrendering?"
"If you kneel down and kowtow a few times now, I might even be able to ask That Lord to turn you into a demon too."
"You'll gain eternal life and power, and you won't have to struggle anymore. How about it?"
Ryosuke ignored her temptation, instead clenching his numb palm and beginning to speak to himself.
"My name is Yasui Ryosuke, seventeen years old. I've been training in Mount Momoyama for two and a half years now."
"Huh?"
The smile on Mukago's face stiffened for a moment, then she burst into even more shrill and piercing laughter.
"Pfft ha ha ha! A dying message! You're actually reminiscing about your life! How pathetic, humans are such fragile creatures! The slightest setback and they start losing their minds!"
Ryosuke paid no heed to her reaction, his eyes growing clearer and sharper.
"When I first started, my physique was very poor, and I suffered from a fatal chronic illness. Moving even a little made my liver ache terribly."
"But I persisted in training every day until I couldn't even crawl, and I continued even if I coughed up blood."
"Even after my body got better, I never relaxed for a moment, swinging my blade ten thousand times, refining my breathing, day and night without rest."
"Even if that annoying system kept chattering in my ear, tempting me, saying, 'Just one year of lifespan and you can instantly master Total Concentration Breathing Constant'..."
Ryosuke paused, a nearly savage curve twisting his lips.
"But I didn't believe in evil, I trained desperately, using my free time over three months to master it!"
"I trained with all my might, no matter how hard or tiring, if a bone broke, I'd set it and continue training, if my internal organs bled, I'd heal and start again!"
"I trained so hard precisely to save those precious lifespan points!"
Mukago completely lost her smile, leaving only irritation and savagery.
She couldn't understand what Ryosuke was saying about "system" or "lifespan points"; she only felt that this Demon Slayer was crazy, out of his mind.
But Mukago didn't know what the chant of an ordinary office worker from Morioh Town signified.
"Shut up! You crazy bastard! Since you want to die so badly, I'll grant your wish right now!"
Mukago shrieked, and her demonic aura surged again.
As she slightly bent her legs, the ground instantly cracked, and she looked ready to pounce again.
At that very moment, Ryosuke suddenly raised his head, his expression exceptionally twisted and exhilarated!
"I've been fighting tooth and nail for this moment, you bastard!!!"
If I kill you, I can be promoted to a Pillar!
With my own jurisdiction, it'll be easier to harvest little snacks, and I won't have to live such a stingy life anymore!
Get rich! It all comes down to this battle!
After Ryosuke roared, a thought flashed in his mind.
"System! All in!"
"Are you sure you want to infuse all your current lifespan into 'Thunder Breathing, First Form: Thunderclap and Flash'?"
"Yes! Add it for me!!!"
Ryosuke roared furiously in his mind.
"What about the excess?"
"It's yours! I'm only going all out this one time! If I can't kill her, I won't live to see tomorrow!"
"Understood ~ Hehe ~"
Buzz!!!
Infinite energy surged from nothingness into Ryosuke's limbs and bones!
It wasn't a gentle warm current, but a violent lightning power strong enough to tear through meridians and incinerate his torso!
"Ugh ah ah ah ah ah—!!!"
Ryosuke roared to the sky, and an unprecedented, dazzling lightning flash erupted around him!
The electric arcs no longer merely coiled but covered his body like a tangible lightning armor, wildly leaping and constantly exploding!
Boom!
Centered on Ryosuke, a wave of air burst forth, blowing away all the surrounding rubble and debris!
Mukago, who was about to charge, was forced to a halt by this sudden drastic change and impact.
She raised her hand to shield her eyes, and for the first time, her blood-red eyes showed uncertainty and horror!
"W-what is this?! His, his aura is skyrocketing?! Impossible! This is impossible!"
"He he he he..."
Ryosuke smirked, and the system's continuous prompts sounded in his ears.
"Thunder Breathing, First Form: Thunderclap and Flash, proficiency has broken through its limit! It has reached the pinnacle!"
"Detecting an increase in the host's mastery of all forms of Thunder Breathing, energy resonance has reached a critical point..."
"Unlocking Thunder Breathing, Seventh Form: Fire Thunder God!"
"Note: The strength and power of Fire Thunder God originate from the host's understanding and proficiency of all other Thunder Breathing sword techniques, and cannot be directly upgraded through lifespan points."
Ryosuke looked at the still-shaken Mukago, grinning broadly.
Hunting hour!
Heh heh heh heh heh—