So we find out who is a monster and thanks to Naruto, what a monster is. I wonder what Tsunade could do to help that girl...probably not much.
I'd have to say that the best thing about this arc is Anko's flashbacks. As she was regaining her memory this entire time, she found out the truth about her past. Her flashbacks were the most enjoyable part of it all. The last one with Anko finding out that she could have gone with Orochimaru but chose not to was the most awesomest one. So now we know that Anko wasn't abandoned but actually chose her own path. She chose the right path and Orochimaru targeted others who lived for revenge and chose hatred over goodness. Sasuke should've been like Anko. Go Anko!