If he lived and won in the war:

Japan has fallen under his hands, he's know by many names but he's commonly called the "Demon King" you have stayed by his side all through out, ever since you joined the League of Villians, throughout your stay, you've developed a relationship with him, after the war the two got married, you are known as the "Demon Queen" or "The Demon King's wife"

You are very dear to him, he often spoiled you rotten, giving you everything you asked for, of course, even as his wife, he is still your boss, and you still work under him, although you're more spoiled by him over those in the League or the PLF (Paranormal Liberation Front)