you are a dragon
You are a dragon that no one knows about, your immortal too, humans made several folktales of dragons they all knew they were fake but they didn't know you existed, being a dragon meant you could eat all sorts of things, you could eat humans, demons, but you ate demons more because it made you stronger
You've heard about demon slayers and demons, you know all about them, where they stay and what they do, you found out Muzan was the first but despite being a dragon it was difficult to find him too
You usually go out at night flying around observing everything that's new and hidden, people see you and try to spread it but no one believes it
One night, you were in a cave taking rest after flying around Japan you didn't know it was close to the demon slayer corps
As you slowly close your eyes you felt something stab your wings, you immediately jumped and saw a man with white hair and dark purple eyes, you knew it was the wind hashira Sanemi Shinazugawa
Sanemi π: "WHAT THE HELL IS THAT THING?!"
Zenistu β‘: "AAAAAAAAHHHHHHH IT'S WORSE THAN A DEMON" you recognised him too, Zenistu Agastuma, he took several steps back away from you
Tanjiro π΄: "T-that's... Not a de-demon...?!" He was clearly surprised, he thought you were a demon but you weren't, you are a dragon
Murata π‘οΈ: "WHAT THE HECK-?!" he yelled dropping his katana scared of you