Hikari [ Bnha x Kny ]

Surprising turn of event

Kokushibo roars and sword grew from his body, Muichiro closed his eyes for the incoming impact but feels nothing.

"Nee-Chan!" Muichiro cried out in surprise at you for taking the hit for him, but his eyes widen more when he saw your eyes. 

Crystal Magenta eyes with slit pupils and black sclera. 

"Nee-Chan you-" 

"Y/n?!" Sanemi called with wide eyes

"You've turn yourself into a demon" Kokushibo growled 

"That's right. But not by his blood but the flower he's been looking for!" You grinned menacingly 

"And demons must be eradicated from existence so I'll burn down with him as well!" Your sword turns red and you stab Kokushibo abdomen

"Blood demon art..." and immediately Kokushibo was rooted in place again by Genya. 

"Blood demon art, Phantom flames" Your hand shot out magenta flames that burn his body as Gyomei and Sanemi manage to cut his neck. 

However it was not over yet, you and Gyomei and Sanemi continue to attack the remains of his body so that he will not be able to regenerate.

His monstrous form finally crumble. You stop attacking and approach his crumbling body. You clap your hand in a praying manner.

"May you be brothers again in the next life" You pray remembering your ancestor story. 

You turn around and saw everyone in bloody state. You cried and look at your hands, specifically your claw like nails.

"You gave up your humanity to defeat him" Gyomei cried

"I gave up my human body but not my humanity. I will make sure to burn Muzan" you said while wiping your tears

"Are they... still alive?" You asked

Gyomei nods but was startled when Sanemi shouts.

"AAAAAGHHH! WHAT'S HAPPENING TO HIM? DAMMIT! HIS BODY! HIS BODY'S CRUMBLING LIKE HE'S A DEMON! RAAAAGH! SHIT! SHIT!" Sanemi cried out 

"Big bro..." Genya muttered out as he cried as well.

"Shut up! Don't say your goodbyes!" You yelled kneeling down to his body. You grab a syringe filled with blue liquid and inject it to him. 

His body regenerate and slowly turned into a human instead of demon. 

"What did you inject him with?" Sanemi asked as he cried in relief and held Genya unconscious body close as possible. 

"Tamayo, Shinobu, and I made two drugs. One was what I used to turn myself into a demon and the second one... was to turn demons back to human" you explained 

"The main ingredient was the blue spider lily" 

•

•

•

"We brought muzan to surface, but the place is the city!"

Muzan rampage continues on as Mitsuri, Obanai, and Giyuu tried their best to fight Muzan. Muzan tentacle whips were about to hit them but were suddenly blocked by the lower rank demon slayers. 

"GO! KEEP ADVANCING!! BECOME THE HUMAN SHIELD FOR THE HASHIRAS! REMAIN ALERT TO GIVE MUZAN SOME BRAWL AT THE VERY LEAST!"the lower rank shouted

"THE HASHIRAS HAVE SAVED OUR LIVES COUNTLESS OF TIMES! IF IT WASN'T FOR THEM WE WOULDN'T BE ALIVE! DON'T BE AFRAID OF FIGHTING!" 

"NO! STOP ALL OF YOU!" Mitsuri cried out 

The battle continued with Tanjiro being killed by Muzan. Mitsuri was about to get hit but it was blocked by Gyomei.

"Sorry for being late" 

'It's the demon slayers that took out Kokushibo' Muzan thought, he lets his guard down for a moment and Sanemi slice him from the back. 

"I'LL KILL YOU! YOU PIECE OF SHIT!!" Sanemi said furiously 

"You know what to do" the voice of your ancestor whispered in your ear 

You took a deep breath and grip you sword tightly, you watched as everyone sword started to turn red. 

"Hinokami Kagura: Beneficent Radiance" Tanjiro attacked

"Sun breathing: tenth form, Fire wheel" You leap behind Muzan and spins in the air downward, releasing a sword attack in a circular motion.

"Let's finish this... Muzan" You and Tanjiro said in sync