[quote=@Princess Sakura]
Um, so will Chrom not really be around at all~...?
Even if he never appears at all, if you're still accepting people would I be able to be My Unit (by this I mean my own chara, not necessarily Robin or with any relation to Validar or Grima or anything, literally just my own self-created appearance and character class etc. without Robin's plot-related stuffsies), and be married to him~?
[/quote]

Once you start getting into that, it becomes a little harder to justify. Why would the wife of Chrom (the effective queen of the land) be over in Ivalice? Robin feels like he hasn't fulfilled his purpose of putting down Grima and has doomed another world, and the others have their own reasons. Plus, you'll have to get around to explaining why your character was never there in the events of the game or why Chrom willingly left/cheated on you for another romance option to have Lucina. Once you start digging into all that, I don't think I can allow it, but you're more then welcome to join otherwise.