That Girl (modern!reader×kny)

Again, Questioning Everything.

(Y/n)'s POV

what did i just witness-

thank god he gave me my katana back.

i think he was talking to muzan... muzan ordered akaza to bring me to him.

why?? ugh, i dont wanna think.

better get back to the mansion before another demon feeds me to muzan

i quickly walked back to the mansion and got inside.

"Oh, (Y/n)! Did you finish your training quickly?" Shinobu asked.

"Y-yeah! I finished the training quickly because my hands started hurting..." I said.

"Oh, then get some rest! I have a mission, so i have to go!" Shinobu said.

"And one more thing! We have assigned you a crow! It will inform you if you have a mission. As i said, I'll be going now!" She said.

"Oh, I see. Thank you for informing me! Good luck on your mission! Bye!" I said.

"Thank you! Bye!" She said.

She smiled at me and quickly left.

Phew...

Well, I really want to sleep right now, so i'm gonna go to bed.

I changed my clothes and went to my bed.

It seems like the others aren't here... They would be practicing the breathing techniques, i suppose. Huh....

I slowly dozed off.
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"Big bro! Are you practicing?"

"....Yes."

"If you finished practicing, can you teach me too??"

"Only if you don't disturb me by talking, (Y/n)."

"Okay! I won't disturb you by talking!"

"Hmm. That's good."
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"Big bro..."

"What is it, (Y/n)?"

"When will nii-chan come back..?"

"... I-i don't know, (Y/n)."

"But i'm sure he will come back to us, one day."

"...Oh."

"But now, as you finished training, Can you help me use my Breathing Technique?"

"Sure, my dear."
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"BROTHER!"

..... I woke up with a loud gasp.

What was that? Why was i there? Why does that girl have the same name as me? Why does she look like a younger version of myself? And that man.... Why does he look like...

The Human Form Of Kokushibo?
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Someone's POV

"The girl, how did she look like when you saw her, Akaza?" I asked.

"She had (h/c) hair, and (e/c) eyes. She was wearing a patient's uniform. She had (s/c) skin." Akaza said.

".... I see." I said.

"And, Kokushibo. Did you realize that she is your sister?" I asked.

"......Yes, my lord. I already felt her presence when she first came into this world. I just... wasn't sure. Because, i saw her die infront of my eyes 456 years ago." He said.

".....I see." I replied.

"Everyone, dismissed." I said.

i want to see that girl

i want to kill that girl, or make her join my side.

She's the only one who could kill me.
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Oh, short chapter- Might update another chapter! Stay tuned!♡♡♡