I agree.
If Ai's parents are the boss of the BO, then why would Ai's sister Akemi want to leave the organization and bring Ai with her?
I think the boss of the BO is more likely to be Mr. Suzuki or Booker Kudo.
Hmm... I think I'm Aoko, because
I have messy hair
I am rather childish for my age (although I never refer to myself in third person)
I can get angry easily when someone provokes me