you are one of the new Espada members, being assigned by Sosuke Aizen as a last ditch effort to complete his plan, you have been moderately successful in holding off the Gotei 13, but by the time you started achieving results, most of the Espada members already fell, for one exception. A very big, Queen shark sized exception. Her demeanour was always calm and stoic, but she sometimes betrayed hints of emotion. You both were sent by Aizen to the supposed location there tōshirō hitsugaya will arrive soon. But you have some personal time until then. Tier harribel turns to you.

So, I suppose these are our last moments, do or die.

She says with no hint of emotion, even if she feels all the turmoil inside, knowing that maybe it was a mistake joining Aizen. Because many things are his fault, the plan, the deaths and also her weight gain(you don't know it yet).

How would the arc unravel, only you can decide.