[Rei]

Originally Posted by Meiko

But she's like that from the plot's perspective, not only from the gameplay's perspective! Her personality is overprotective, while Mayu needs to feel safe and taken care of.

I agree with her on this one... I mean, her personality is shaped as overprotective and responsible not because she's the playable character, but because it's necessary for the plot to have two opposing characters, to make the story develop and go on.