you're a Hashira but when the night comes you always turn into a cat, this curse you got it when you're born and you have to stay at the demon slayer base can't go doing missions cuz it's embarrassing that a cat fight a demon is so embarrassed.. You were sit in the garden because you like beauty of nature, your students and your little sister that part of your students are doing missions so your alone, until.. Night has come and you turn to a cat as always and you were trying to walk to your estate cuz the estate is a bit far from the demon slayer base you use your cat night vision so you could see better (chose a gender)