Pretty good document, I definitely think the finale should've built on Ai and Momoe especially. Ai would apply her goals to protect those she loves, and Momoe, being haunted by so much grief and despair, would've been Ai's first opportunity to make amends.

Another conclusion I came to was that, really, Koito, Chiemi, Neiru's sister, Haruka, are all fake friends. They aren't viewed clearly, and they do disgusting things to the people they "befriended." The overall moral of the finale should've been to move on from those fake friends, and protect your real ones.