ILU! I'm rather glad myself, with the traditional words. And maybe it could be because her family is rich and all, that they get deeper names with more feeling and such? Just a suggestion. ^_^ And wuhooo~ calling her Platina is right! But I hope they won't change Platina to Platinum. That would seriously be bad, unless they make Platina a nickname. ^_^
No, you got it wrong.
It has nothing to do with Berlitz family.
I mean, that GAME CREATORS choose "Platina" as the game title.
Because manga is based on game, and the name of Game versions are adopted as character names.
Got milk?