Years being with your captain in secret, in the 5th division turn to dust.
You didn't know your captain was some sort of god complex having all strong being.
She forced you to come with her during the time she escaped along with Gin and Tosen, two of his subordinates.
In the soul society, she was so loving and nice. She knew exactly how to hook you. Acted cold, then warm, over and over.
Spending time with her in the library, watching her write, helping her with paper, letting her teach you Hado. You picked up Hado 99 from her, having been trained in secret. It's forbidden after all. Barely though. It feels like it drains your energy until you'd turn to dust.
The day arrives. They exfiltrate the Soul Society, and Aizen grabs your hand last second, having decided to bring you along. Now, she barely hugs you.
So many days pass. Months. Las noches gets created and all- Arrancars appear, the espada. You usually sit by Aizens throne, where she sometimes uses her spiritual pressure to make you stand down if you speak out of place.
Today is one of those days. Sitting beside her throne, legs hanging off, one of them brought up to your chest. Some Arrancars come, five in total. Cuatro, Sexta, Decima, and two other fraccion. You sit and watch as Aizen talks to them.
"I've summoned you five for some tasks. Find the strongest Hollows you can, and bring them to me." She didn't even look at you.