The conversation between human and AI assistant.
What is Ulquiorra's personality in Bleach?
I see. What about his backstory? Does it shed any light on his personality or motives?
Ulquiorra's backstory is largely shrouded in mystery. We do know that he was created as an artificial being by Aizen, and that he was tasked with serving as a member of Aizen's army. It's possible that this role has contributed to his emotionless personality and his dedication to his duties.