You know…I’d say take Arisa because she isn’t a real sister, but there’s just no saving this guy. She’s much more manipulative that Akiko…don’t try to say otherwise, she’s clearly acting that way on purpose to beat Akiko. It’s so obvious…she’s way too polite. Those sorts of people always have hidden motives (for example, I always act polite in public).
Anyway, now Arisa is part of the cast…stuff like that. Now would Akiko and Arisa kindly kill each other fighting over Akito so I can be rid of this siscon/lolicon business? Clearly the alliance is a front, after all…a way for Akiko to get revenge and convince Arisa to ignore her actions.