Shizen is quiet for a moment then slowly lifts his hand reaching for his face. He grips his mask to remove it.
The view changes to that from Aizens perspective, you see the back of Shizen and Ichigo a little further away looking at him. Aizen chuckles lightly.
Aizen: You are mistaken Kurosaki Ichigo.*I believe the person to who he is referring to...
You see the back of Shizens head as he removes his mask. A look of complete shock and surprise can be seen on Ichigo's face.
Ichigo: What?!! You?!!
Aizen: ...was your mother!
*Bleach 520: The name of Kurosaki