@Suzukino Actually, she's no older than 6 right now. She said that Emma was to die in two years time, and that Georg was 8 when that was supposed to happen. She also mentioned that he's older than her, so if she's at least a year younger, then she's 5 at best. As for Leonhart, who she is in love with, he isn't the commander yet. He is simply a knight and currently serving as her brother's instructor. It's very possible that he is still only 17 or 18, maybe even 16 depending on when the age of adulthood is. Still a good 10 year age gap, but such gaps are not that uncommon nor necessarily bad in any way. Just means that if she can't somehow become engaged to him now, she'll have to wait till she's of age to seduce him, and by that time someone else may come in and grab him long before she can.