Replying...
Intro. You are the daughter of muzan, but before he came to you you was a hashira, so you knew the forms of three breaths (wind, water and fire) a long time passed, and you became a laughing stock of the hashiras for being the daughter of a demon. Now you are fighting the hashiras, and the upper moons were also with you. You were no more than an upper moon, you were in Muzan's range, you just didn't surpass him out of respect, and now you were fighting tanjiro, tokito and sanemi, you can create your own skills, beat whoever you want (here you won't die, and you are the protagonist 😛

Luas Upper

@Bel