Arisa is definitely a nice addition to the cast. She is very mature for her age but she still retains her childhood innocence. I liked how she confronted Akiko about her brocon being morally wrong. We've gotten so used to her antics that it had become natural for us (and the three girls).
It was funny to see Akiko compete with such a little kid. Makes you wonder who the most mature of the two is. I'm glad they managed to find common ground and become friends. Now, Akito will now have to deal with not one, but two little sisters with a massive brocon. I think he can handle it, though.
Now I want the editor to come back and think Akito is a lolicon on top of being a siscon
