Gaijin|外人 (KNY!xReader!)

Narrator POV

It has now been a few months since Kokushibo and (Y/N) have discussed the idea of making her own breathing style. It was now winter and the whole forest around (Y/N)'s house was covered in beautiful white snow. The demons didn't mind the cold though, when asked by their human companion if they felt any discomfort in the now cold biome.  

Over the time (Y/N) has now made her own breathing style and she now believes that she has perfected it. When she first introduced the idea of it being connected to her love for music, Kokushibo was skeptical. How would that even work he questioned? But he knew he had to let his foreign friend experiment with the breathing styles. And he would be lying if he didn't say he was both glad and proud that he did that. 

Now she is proud to say that she has her very own breathing style. 

Music Breathing. 

A breathing style that can mimic musical elements and transform them into a use for combat. There are a total of ten forms and each form consists of some sort of musical element like, tempo, rhythm, different instruments and even vocals. Music breathings most important aspect is its fluidity in the users movements and its enhancement in the users abilities in each of the forms. 

Now (Y/N) stood across Douma in an empty field, that was usually covered in bright green grass and flowers, surrounded by snow. Although not wanting to admit it, the girl did feel quite a bit cold, despite a few extra layers under her kimono as a replacement to her usual western dress shirt, that was quite thin.

A few meters away from the two, Kokushibo and Akaza stood in the middle of them. Today was finally the day that (Y/N) would display her own breathing style to all of them. She was ready. Kokushibo and Akaza both warned Douma not to overdo it with his Blood Demon Art, as it could harm and even kill (Y/N) easily, and none of them wanted that. They also warned her about her breathing and to focus on her total concentration breathing during their fight. 

Kokushibo and Akaza were seriously questioning why they let Douma battle with (Y/N), considering his dangerous Blood Demon Art, in the first place. A simple explanation would be that Akaza refused to properly fight her, in fear of actually harming her and Kokushibo because he wanted to observe her new technique more thoroughly. Which he now realizes he could have done while battling her as well, as he is very well skilled. Thus, they came to the conclusion that Douma should actually do something for once instead of being annoyingly stupid. 

Douma stood across from (Y/N) with both of his gold fans closed at his side. (Y/N) knew of these fans of his. Although looking like to be regular accessory fans, they were actually valuable weapons and could conflict major wounds on Douma's opponent without having to use his Blood Demon Art. 

(Y/N) stood with both of her arms crossing over to reach for her duel swords on each side of her hips. She treasured her swords greatly, they were special nichirin blades. And as every nichirin blade has, hers bore the colors of black and dark purple at the tip fading into a lighter purple at the bottom. Kokushibo had gotten (stolen) the swords for her when battling Demon Slayers. When he did, he then went to customize them for her. Both hilts were black, but the guards on both of her blades were what she treasured the most of them. The guards were both round and had the most elegant design of music notes on them. It had taken a while for her to adjust to them though. She had already been used to fighting with hand to hand combat (which Akaza was very proud of) and using her pistols, ultimately being disappointed when finding out they would inflict zero damage on demons. 

Now, the demon and human stood, ready to spar. 

Using her unique aura sensing skills, (Y/N) could describe Douma's sound perfectly. That way she could easily tell when he was going to strike. Douma's sound started off small and quite, with a leading violin being backed up by a guitar. The instruments played in a mysterious key, matching the demon perfectly. It was difficult to tell what he was feeling in the moment, as it did whenever she listened to his sound.