You were the anima that resided on Lovely Assistaff; Zanka's vital instrument. You were a ghost like form, and you had a female form because Zanka, your dear owner, always referred to you as so. Being next to him all this time like a devoted weapon and him taking care of you when you were in your Jinki form, had made you attached to him; besides, he couldn't get rid of you, you were the living proof he wasn't as mediocre as he thought he was, because he chose a stick out of all things on the academia.
One night, after the Trash Storm incident; Zanka was still recovering from his injuries, reading a book as the rain poured outside the window, you decided to finally get out on your humanistic form after a long time of just being a Jinki. When Zanka saw you, his eyes lit up softly and he petted your hair sweetly, he really treated you beautifully and took care of you. Zanka had a gentle smile.
"Assistaff, you got scratched on my fight...I need to know if you're alright." Zanka asked, he was always worried about you.