Yet another (not) amazing revelation

[swanchika]

If Frederick marries Lissa, which is bound to happen in at least one of the playthroughs I planned (the stars are more than okay with that pairing ; more on that when I'll talk about my Zodiac-oriented breeding plan), he becomes Chrom's brother-in-law, right ? Now, a brown-haired Jeigan-esque promoted Cavalier, with a preference for lances... Who marries the blue-haired hero's younger sister...

Man, I wonder where I heard that one before.