Is saving them all really that important? [Kny x Fem!reader]

[Chapter3]

[Start]
[☁️]

Keido-san and I walked away from Urokodaki's house to the place where me and Tanjiro train to break the boulder. Once we got there he started to speak.

"There's a few things i need to tell you before we start training." He said and i nodded.

"There is a consequence to using light breathing, and that is that your insides will slowly start to burn. Using this breathing style will kill you from the inside out." He said to me totally calm. I look at him wide eyed and pointed at him. He laughed.

"Well you don't usually live past the age of 23, but I'm well over 20. That's because there is a cure to this. There is another problem though, the cure might not always work. To make the medicine , it takes 10 years. That wasn't the problem though. So the actual problem here was that the medicine has a 50/50 chance of actually healing you. There is a way to tell if the medicine is gonna work or not, but we haven't figured it out yet." Keido-san said again very calmly.

While me on the other hand was kind of freaking out. Who was this guy, why was he here and not in the manga? I've never heard of light breathing before. But me who didn't think of anything other then saving the character's I like, agreed.

"Okay, great! Let's start." Keido-san said enthusiastically like nothing had happened just a second ago.

<★>

Since i already had training with Urokodaki, the training here wasn't that hard. We had to swing swords, attack trees and would spar with Keido-san! Learning the breathings were pretty hard, but I was able to learn 2 already! This was way harder then it looks in the manga. Total concentration breathing, was not an easy thing to learn either..

I've been here for a few months! I've lost track of time.. Did Tanjiro meet sabito yet? Not sure but today I'm going back for a visit, and to see if I can cut the boulder. I trained really hard, but it was super fun!

<★>

"Y/n were here." Keido-san said as I rush forward to the house.

I see Tanjiro leaving Urokodaki's house to probably go train. When he turns around he sees me running towards him. Tanjiro look's a bit different.. His hair is long.

"Hi" Was all that I said to him.

"Hi Y/n! How are you doing? Have you been training? I have and I think I have gotten stronger! Do you think so too? Nezuko hasn't woken up either.. She's still asleep. But the doctor said there's nothing wrong-" Before he continues I put a hand over his mouth so he stops talking.

"Have you split boulder." I asked.

"No?" Tanjiro replied. After asking him that I walk into my house to go look at Tanjiro's journal.