If you could have a person as your brother/siter in RL from graal... Who? ^_^

Brother: I don't know, probably Crono because he's the brotherly type. I would say Psyker, but we have a history and siblings just can't have histories.
Sister: Tropicana Raurenu! She's played Main before, but I doubt any of you know her. I've known her for LONGER than I've known Psyk and Crono, AND I've met her in real life.