The last breath user of the Sun & Moon [DEMON SLAYER]

The Strongest Moon part 1

it's been two days since you left the mountain and headed where the winds guide you; you notice a town coming into view, even though you could avoid it the town felt strange, so you decide to investigate to ease that feeling like something or someone important was in this town

you walked in town and noticed that there were lots of people moving around in the day time; their were people buying food and accessories, it was like every other town you had passed, but you still felt anxious like their was something wrong here, you decide to come back at night; you walked out of town to a nearby cave you saw and made camp their, you closed your eyes after eating the fish you had caught earlier when you opened them you was in your younger body and holding a wooden sword; a voice called out to you 

???: y/n are you okay do you need a break 

Y/n: master....

tears started to form in your eyes as you looked at the master that taught you the breath of the sun; you dropped the wooden sword and immediately ran and hugged him even though you knew it was a dream; you heard another familiar voice 

Michikatsu: what's wrong with you y/n you act like this the first time you saw us in a long time lets him take a break yoriichi 

yoriichi:  okay we'll take a short break, but make sure you're using total concentration constant 

after a short break, we went back to training just like in the past i trained using the sun breathing technique in the day and the moon breathing technique at night, the scene changed to a memory i wished i forgot the day i lost my masters i didn't know what happened to Michikatsu, but that day the moon turned blood red i witness yoriichi die i couldn't tell who did it, but i knew it was a demon; you woke up out your dream and realized it was already dark 

y/n: time to investigate this town and hope their nothing wrong 

 you get up and head back in town, it wasn't as busy as day but what was strange was the few people that looked like they were in a trance; you followed them stealthily; they wandered into a building that was disguised in an illusion as ordinary building, i saw two demons one was putting humans in a hypnotic trance another i couldn't see since i was a little bit away from them

???: is this all the humans you could take jinki

Jinki: yes Kokushibou not many people will come 

???: well find a way to lure more humans

i move closer to get try to look at the other demon; as i did my eyes widen with tears and shock; even though it was a different appearance their was no doubt about it that demon was my master; the user of the moon breathing technique  

y/n: master Michikatsu is a demon, but master hated them 

i was filled with a lot of emotion, but i pushed that aside and drew my sword as the demon jinki caught me and was out to attack me 

y/n: moon breathing: First Form Luna blade 

in an instant, the demon was sliced in two; i moved closer to the demon Kokushibou; he recognized the technique that he had made; i couldn't contain my anger and i pointed my sword at him

y/n: why.....why did you become a demon master Michikatsu!

Kokushibou: impossible how you still alive y/n that shouldn't be possible 

y/n: ANSWER ME!  MASTER!

i watch as he unsheathed his blade and had it ready in his hands; he was right the kind gentle master that i used to know was gone; replaced with this demon 

Kokushibou: I'm not your master anymore i discarded my humanity a long time ago I'm know an upper moon helping muzan with his goals 

y/n: that doesn't answer my question why did you the one that hated demon become one 

Kokushibou: to defy the destiny i was given  those with marks like these die when they reach the age of 25 and i wanted to become stronger than my younger brother 

it's true that i also had the demons layer marks and was fully aware of what would happen to me after reading my masters journals in the past; even though i knew i was still prepared to die even when i fought demons i was always ready to face death and reunite with my masters, but when i thought my last battle would be the end, fate was cruel to let me live to see the day my master gave up and left humanity behind; i calmed my heart and breathing and looked at my former master with my blade ready 

y/n: since master decided to go down the wrong path its only right that i disciple of the user of sun and moon set you free 

Kokushibou: i don't how you're alive if your not a demon, but don't think I'm the same 

we both got into our breathing stance; i knew master was different more powerful than in the past, but the same can be said about me never stoped training even after believing they both died and i became powerful and i know i can keep growing more until i die again; we were both focused on each other not moving a single inch, in an instant we both moved at blinding speed and clashed swords.......

Too be continued ......

( heyo rex-kun here, i hope you enjoyed this chapter sorry for the little cliff hanger i wanted the battle to have some suspense to the very end )