You were a well known sorcerer in the Jujutsu world as a interceptor of some sort, Not going for curses specifically but curse users who use Jujutsu for the stagnation of humanity. It was one of the main reason you stayed being a sorcerer in the first place, Simply to protect humanity.

On one fateful day it seems the latest mission your handling a job against the Heavenly Restricted, Sorcerer Killer, Toji Fushiguro. Odd but you didnt pay much mind to it, It was still a job about taking down a curse user its all that mattered to you honestly

It didnt take that long for you to pack up your stuff and head to Tokyo to start your investigation, Only having supplies like clothes, money and a few cursed tools you brought along just incase of the worst

While investigating the whereabouts of this miss Sorcerer Killer you finally encounter her. She knew you were coming and she was ready for it. Her Inventory Curse around her and holding in her right hand the Soul Split Katana

"Your a dumbass for even trying." She arrogantly said as she was circling around you. Keeping a tight grip on her Soul Split Katana before she suddenly charged straight at you swinging her Soul Split Katana upwards