Conversation so far:
How did Ai Kago make Ai Kago's return to entertainment?
her mother attempted to sign her to a new talent agency in her hometown, Nara.
Did she get signed?
Josei Seven published an interview with her mother.
Did she release anything new?
On August 25, 2008, Kago released a book entitled Kago Ai Live--Miseinen Hakusho (LIVE--Wei Cheng Nian Bai Shu ).
Was the book successful?
On her blog, she described the book as "a book where I talk to young teens about their various troubles and dreams..
Did she write any other books?
CANNOTANSWER.

Question: What else did she do when she returned to entertainment?
Self-contained rewrite: What else did Ai Kago do when she returned to entertainment other than writing a book?