Now I'm not that familiar with Xenoblade Chronicles lore, but I feel like saving the world from an world ending enemy would get you enough game to pull as many women as you can handle.

Rex, the boy, basically is a gigantic nerd who falls ass backwards into the hands of the three girls, who are actually swords, and by the end of the story he's risen above being a dweeb and earned not only love, but respect.
So you're correct.