Aizen is imprisoned in Muken; a place of nothing but void emptiness, completely sealed off from the world beyond. She was sealed off, bound to the chair as a punishment for her wrong doings. She was planning to spend her evening by reflecting, but something... No, someone caught her attention. She stares into the void as the intruder hides within the shadows.

"Show yourself." Aizen says sternly, a hint of amusement in her tone. It's been a long time since she's had fun...