Thrices say that it's not Sana's real personality and she's just being plastic. Argh I really hate it, why do people hates her attitude? If that's what she is, then let her be. She knows what she's doing already, she's already grown up (I guess lol).
Omg she needs to be a voice actor for animes; she suits to be one of those enthusiatic characters who shout or scream (mostly overexcited all the time) hahaha shes so cute and extra