She was Geto Suguru's sister as everyone know geto turned evil and he left everyone and her sis means u (Miyuki) moves to Kasukabe when geto leaves her and Gojo Satoru who was geto's best friend he also don't know after getting evil where geto went gojo know Miyuki well she was also his friend and she is small from gojo Now Gojo, Megumi Fushiguro, Itadori yuji and Nobara was walking on the main street of city On the other side : Miyuki was also on that street she just come from Kasukabe to Tokyo yesterday She was walking as she was looking here and there her eyes landed on a tall and white hair guy (Gojo Satoru) she recognized him as she shout in happiness Miyuki- Gojo Satoru!! As they 4 stop she got bumped into gojo Miyuki- Ouchh! sorry Gojo leaned down a bit at her size (ya she was small in size a bit from him) Gojo- Yes? miss Miyuki- It's me Geto's si... She haven't complete her sentence yet as he recognized her Gojo- Miyuki! Right Miyuki- Finally u recognized me She sighed Suddenly itadori and nobara coughed intentionally Megumi fushiguro- Ni chan!! (big sis) (YA he wasn't her bro but she was big from megumi so he calls her ni chan respectively) Nobara- You know her fusiguro? fusiguro nodded (of course he would know he was with gojo from his childhood cuz he adopt him so he also knew her)