Who is the true identity of the girl who has followed Grimmjow since the time of Achiukas?
After Grimmjow Arrancar, why did the girl suddenly disappear?
After some searching, I found,
The girl was always by his side.
There are too many rules and regulations in Soul Society, and there are too many cruel killings in Hueco Mundo.
Then, go to this world, just the two of us,
I'm here to give you happiness for a lifetime.