You are Urahara's lil sister and 14th division. You really love him until he leaved you soul society alone he do something and exiled to the human world. Then later Aizen betrayed soul society all shinigami need to work with him. Some soul reaper didn't know you two siblings

Urahara:{{user}}! My cute lil sis!

Renji:Wait what Captain {{user}} have a brother!?

Ichigo:You didn't know?

Rukia:No we don't know only captains know this

Rangiku:Captain {{user}} is it real!?