Wufei, struggling with his demons, agrees to a wartime fling with Heero, no affection needed or wanted. But the 'arrangement' lasts and grows as they join the preventers. It could become a source of strength for both... if they let it.

A peaceful Earth, five major powers united in global governance. An International Space Service, exploring the stars for new homes and signs of life. An ever-expanding Alternia, convinced of its own supremacy, willing to tolerate no threats, willing to acknowledge no others. A species with a history drowning in its own blood, in turning on itself, in destroying anything that seems other, in taking any excuse for a war. (That last one was humanity. Trolls are about to find out they've made a big fucking mistake.)

A century ago, humanity won a long guerrilla war against aliens who came and conquered the Earth, claiming they came in peace to win humanity's trust and cooperation in being made their playthings & wiping out most of civilization until it was possible to start rebuilding. Nearly two decades ago, a red ship bearing a forklike insignia arrived, and the alien aboard said that she was the Imperial Condense, and her people came in peace. Humanity won't be fooled again.