Sister of the snake - Tanjiro X Reader

CHAPTER 36

A/N: Oh my god we're almost to 10k reads!! And during this time I have not updated. I am so sorry I've been busy and just didn't have the time, but that's no excuse, so sorry.

The doll began to crumble, revealing my old rusted blade to the daylight. I stared at it in happiness, remembering that this was the blade I used to almost murder Kibutsuji in my past life. It was the blade that I used to single-handedly murder every single upper moon only days before meeting up with Kibutsuji Muzan.

"Good job, Y/N!!! It took you days, but you finally managed to beat the doll!!!"

Kotetsu wasn't very cheerful and positive like Mitsuri, but the point got across. 'I've got my sword... even if it took me days, and the blade is old and rusted.'

I took the rusted blade and went to Haganezuka to ask him if he could fix it. He at first seemed mad, but after I fully explained that I got the blade by defeating a four-to-five-century-long battle doll based off the strongest being in all of history, he calmed down a bit. And he agreed to work on it.

I then went to check up on what Tanjiro was up to. I watched him try and fail to beat the doll. I half wanted to go and help him but at the same time I knew that I wouldn't always be there for him and that he needed to learn his own training methods for when I'd be gone. Because it was my intention to die before Tanjiro died.

I wasn't going to let him die before me. Which meant he needed to be more mature and learn his own training methods. Which meant I just had to watch him and maybe train in my own.

Which is what I did. I went to a secluded forest and trained on every single one of my breathing forms... except the 17th form. I would NOT use it. Using it once has already taken its toll on me.

Sometimes I would wake up and find blood leaking out of my mouth. I was not going to risk getting more hurt by overusing the 17th form.

So I only trained the other forms. As well as that, I practiced basic swordsmanship like better precision, speed, strength, reflexes, etc.

Tanjiro landed his first hit three days later. It was so weak that it didn't do jack shit, but it was a hit nonetheless. He gained the right to have food. Wonderful for him, I guess, but taking a full week to land one weak hit is kind of pathetic. I was still sort of proud of him though. He had improved.

Well it didn't take him very long to land another hit which eventually cut the doll's head off - 'Like a demon, which is good.' I thought - but he forgot to break his fall, so he probably broke his tailbone.

Not really.

When the head fell off, another katana was revealed. One that was definitely Yoriichi-nii's. Tanjiro was shocked since he hadn't seen mine, but Kotetsu was kinda like meh I've seen that before.

Haganezuka then spawned in out of nowhere and tried to pry the sword out of Tanjiro's grasp. He was like twelve times as stacked as he was the last time I saw him (three days ago), which was shocking for everyone. After a bit, he has explained that he wanted to fix that katana as well as mine so that Tanjiro would be able to fight with it.

The next day Tanjiro was asking Genya if he should go check on Haganezuka. Well the ravenette was not answering with any real advice.

"I don't care! Get out, dammit!! Don't speak to me as if we're friends!"

Which just made me laugh. Tanjiro considered everyone as his friends, except non-Nezuko demons of course. So I wasn't shocked by what Tanjiro said next.

"But we're friends, right?"

"No we're not, dumbass!! You broke my goddamn arm, don't tell me you forgot!"

Well that was new, I certainly didn't know that. 'I guess hitting Shinazugawas is just in his genes, eh? First Sanemi-san and now Genya... although Genya was probably the first to receive this treatment. Not my problem, though.'

"Hey, you hit a girl. I had to, Genya. You were completely at fault."

"DON'T CALL ME BY MY FIRST NAME!!"

'The Shinazugawa genes are really showing,' I thought, eavesdropping on their conversation from outside the room.

"These rice crackers are really good. Wanna try?"

"SHITFACE! I DON'T NEED THAT CRAP!! GET OUT!"

A vein popped on my forehead when I heard the sound of him smacking Tanjiro's hand away from him. 'And just like with his elder brother, this man is going to get a long and painful beating from me which will put him in the hospital for a very long time, I guess.'

But Tanjiro was unbothered by this show of aggressiveness.

"Huh? Your teeth. Didn't you pull them out... at the spring?"

Genya went silent for a moment. 'So that's why I sensed some human blood there when I went with Tanjiro-kun.' When he finally spoke, even I could tell that he was lying.

"You must have been seeing things."

And then Tanjiro did the most unexpected and also the most GROSS thing I have ever seen - he pulled out a fucking tooth and showed it to Genya. There was literally still blood on it.

"No, I wasn't. I have your tooth right here."

And I wasn't surprised by Genya's disgust.

"WHY DID YOU TAKE IT?! Ew, you're fucking gross."

"But, you dropped it and I wanted to give it back."

"YOU'RE INSANE! THROW IT OUT!! AND FUCK OFF!!"

...and then Tanjiro was ungraciously kicked out of the room. He looked at me, and I stared back at him, a light blush on both of our faces. 'Must be my imagination,' I thought. 'Why would he like me anyway...'

"Do you know why he's so angry all the time? Is he hungry or something?"

I shrugged, not having a clue.

"I don't know, it's probably the genes."

"The ge-?"

"Genya is Sanemi-san's younger brother."

Tanjiro's face darkened only slightly.

"The one who stabbed Nezuko...?"

"Yes."

Then Tanjiro's face brightened again. He then offered to go eat lunch with me and I accepted, happy to be in his presence for even one second longer.

Minor timeskip (night time):

I woke up in a cold sweat. It was almost midnight and both Tanjiro and Nezuko were asleep next to me. But I had an eerie feeling. 'Is someone watching...?'

I went outside but saw and sensed nothing more. 'Must have been my imagination,' I concluded, and went back in my room to sleep.