Angst Today, Awkwardness Tomorrow {Muichiro x Reader}

So, yeah, my family's dead. Gone. Reduced to ash and memories. Demons. Because apparently those are real, and not just figments of overactive imaginations. The last thing I saw of them was... well, let's just say it involved a lot of fire and screaming. Now, my life has officially become rather dire, complete with tragic backstories, questionable life choices, and a whole lot of screaming of my own (mostly internal, I swear). Great. On the bright side, I'm getting some amazing training from a guy who looks like he raided a bonfire and stole the sun. My Sensei is... intense. Like, sunshine and screaming combined with a dash of over-the-top enthusiasm. Honestly, I'm surprised the dojo hasn't spontaneously combusted yet. He moves like a whirlwind of fire, while I'm still trying to figure out which end of the sword to hold. Seriously, is there a manual for this?

Between mastering sword swings (and trying not to trip over my own feet - a constant struggle), navigating social interactions (a true horror, second only to actual demons - I swear, small talk is my personal hell), and battling inner demons (both literally and figuratively - my self-doubt is a formidable opponent), my journey to becoming a Demon Slayer is anything but graceful. I keep thinking about them, you know? My family. And how I failed them. I wasn't strong enough. I wasn't fast enough. I wasn't... anything enough. But I can't let their memory fade. I won't. Wish me luck, Y/n (because we'll need it) as I try to survive the Final Selection, avenge my family, and maybe, just maybe, not die horribly in the process. Too bad I missed the opportunity to join my family from the get-go, thanks to - Ahem - someone. Now I'm stuck here because I WILL NOT let another filthy bloodsucker, a DEMON, touch a single hair follicle of those I love - those who surrounded me, cared for me, and healed me.

That...
I will make sure of.