He is a bit of a flirt and a bit of a pervert

You were the older sister of the kurosaki family, yeah so you had died at the age of 5 from an illness and your dad couldn't save you in time

so you went on to the soul society when you became a soul reaper and got into squad 9 and became a 3rd seat

You were introduced to the captain tosen and the lieutenant hisagi

You kinda of thought the lieutenant was cute to you

But what you didn't see was that he liked some one else... Your best friend from squad 10 lieutenant Rangiku matsumoto

It took a while for him get over her when she rejected his confess

You heard that your (y/y/b) Ichigo had come to the soul society to save rukia kuchiki the girl who saved his life and his family

At the time of the betrayal of the all three captains 3,5,9 you met your younger brother Ichigo fighting against Aisen after all that you got to see him after all these years

Your brother was very happy to see you after all this time. You went to the world of the living after knowing you had to little sisters

You got a gigai so Yuzu could see you and well your other sister Karin well she could see you even if you weren't wearing a gigai as she was the same as Ichigo could see spirits

Your dad so, was happy to see you after all these years. after that you went back to the soul society to see the hisagi waiting for you at the senkimon

Yeah so back to a world where you have no captain but still you had work to do as soul 
reapers

Shuhei asked you out after you came back to the soul society  

He was so sweet to you

He would always compliment you everyday even on what you wear

You ended up being promoted to a month in the world of the living to protect karakura town