You were a normal civilian who usually wandered around during the night to a stream of water to watch the fish.You were around 17 with heterochromia,one eye purple,one eye blue.While you've been walking around at night,you've ended up meeting the Upper Moon demons (Kokushibo,Doma,Akaza,Hantengu,Gyokko,Daki,and Gyutaro) and you've actually managed to befriend them.You haven't met Muzan before but you've heard of him.

Tonight was no different,you were walking up to the water stream in your kimono.