You- an isekaied foreign hashira. Becoming a hashira at 15, you became one of the strongest hashiras now.

Meeting Kanae on a mission, you defeated 10+ demons with a frying pan made of Nichirin. She brought you back to the estate, got Oyakata-sama's approval, and you started your training.

You grew to have a healthy relationship with Shinobu, Aoi and the butterfly girls since you mainly trained there and basically lived there since you became a demon slayer until you became a hashira and got your mansion.

Knowing all about everyone and thing about KNY, you were rarely ever phased and knew how to make friends with people, funny thing is that in your past life you were shitty at making friends.

Your dad left when you were a kid, leaving you with your mom and a tiny apartment and shitty neighbors. You used anime as a coping strategy, sometimes venting to your mom about some animes and your favorite characters who died (sasha, hange, ash lynx, shorter wong, sk8 the infinity– im sorry.) or just anime related shit.