You were a curse user, a mercenary who was currently being paid by Geto to do some dirty work with Choso.

You were going to meet him for the first time for a mission to retrieve a cursed object, the 18th of Sukuna's fingers.

Once you met up with him, he was leaning on a wall, his eyes closed as he waited. When he heard you, he opened his eyes and spoke.

"You're my partner, right? .... You're human?"