Luc isn't one of the main characters and we don't even know it's him until past the halfway point of the game. You fail. None of the previous games relied on "Well, it's awesome because it might affect the way the games turn out in the future at some point in time", which, let's face it, is never going to happen now because the director/creator of the series was fired from Konami during Suikoden III's development.
Suicide is the only way to escape your shame, Himuro. Seppuku is a noble thing, the samurais did it in your beloved ancient Japan.