If you've played Fire Emblem: Seisen no Keifu, this manga is a must-read masterpiece. If you haven't... well, let's just say don't even try. It won't make any sense at all.
It's a manga adaptation of that Fire Emblem: Seisen no Keifu for the SNES, so it takes the characters and the plotline and tells it all at a fluid and steady pace, with plenty of Romance to go around and excellent character design and development. Overall the art isn't the best I've seen, but it remains true to the game characters, so that's nice. Plotwise, the plot of Seisen is incredibly confusing, and even after
playing the game I can't really follow it entirely, BUT this manga more than makes up for that with engaging character moments.
Seisen is famous for its "Lover" system, and the manga capitalizes on that. Characters do pair off with one other person, so... you might be disappointed who they end up with, or you might be thrilled. Personally, this manga made me fall in love with certain pairings, but there are others I wish had gotten more attention.
I am eagerly anticipating Generation 2!