I had another OC called Azumi Hoshi, but didn't like her anymore, so decided to make another one

Here's the great Kotoda Tamashii, Souls hashira

Basically her lore is that she exist at least 100 years after the hashiras we know existed.

Demons were brought back to life from a bit of DNA a mysterious group of persons found blah blah blah

So basically she's part of that new demon slayer corporation that takes the old one as a base, following its rules, roles, etc.

Yeah lazy, boring and not creative.

Well bye.