The hero (or, sometimes, one of his male party companions, or both) is so handsome women would
gladly throw themselves on him, despite his coming from another planet/being a half-human half-whoknowswhat/
being a genetically modified freak who turns into a monster or whatever, and despite his usually awful character
and his "don't care about anything" attitude which makes the average female player fall hopelessly for him and
the average male player eagerly wanting to kick him in the shins.
Despite this, he only falls for ONE woman during the entire course of his life (sometimes at the tender age of three),
to whom he desperately remains attached, even in the case that she is lost somewhere in the galaxy
(probably with someone else), reveals to be evil,
is impregnated with the son of another man, or is clearly dead.
If for any of the aforementioned reasons the love of his life is unavailable, the male hero will, for the rest of his
grim, miserable life, become a loner who seeks some rest from the atrocities of his ever-tortured soul and atonement
for his sins (usually consisting in not being able to save the girl, be it from death or from another man) without ever
finding it, and should he find the hottest female character ever (who has always been under his nose anyway and is
now sure waiting for him to notice her),he only will develop a very tender friendship that never
brings to anything effective (with great scorn of the poor girl, who in turn keeps on sticking to this moron despite
the fact any othe man would gladly throw himself off a cliff for her).
I'd call this one the Cloud Strife + Vincent Valentine rule, what do you think?
And this is Aeris Gainsborough's corollary:
The female main character, in case she should lose the love of her life, will instead gladly fall for all those
who remind her of him even in the slightest way (or for the male hero, who may be one and the same with the previous
one.)