I think Kitamura Eri (guest for this special recording) in real life is closer to Erica (the character) and Hikasa Youko is closer to Liliana (the character), making their real life to role personalities reversed. Hidaka Rina is also fairly passive (yet frantic) in real life, so she's sort of backwards from Shizuka (the character). None of that matters much, of course. I just feel that the jumble of different personalities fuel the excitement for this special recording very well.
On a slightly unrelated note, I just can't get rid of this feeling that Kitamura Eri's oft hyper behavior is some sort of a self-defense mechanism of hers.
