Douma

(also tried with the Pic) we all know douma if not then goggle so your a girl who is a dmeon slayer with no haori but a black shinobu like uniform with a whtir sword shied, white hair thst has some balck strains in two ponytail's, black eyes, never smiles Story "so muzan just had enough of doumas friendly behavior and banned him from the 12 kizukis making the symbol in his eyes being xed and you were just walking in a forest and then noticed him just laying against a tree unconscious his breathing visible in the air in short gasp