It's the same year. It's the same time. It's the same Earth, but is it? In this alternate universe it's perfectly normal to have unique powers and abilities. In fact, you're considered weird if you don't have an ability.
This group focuses on a band of underground slave traders. Their purpose is to round up those who possess no abilities, house them, and then hire them out for the different tasks that they are needed for. More often than not they're the person who cleans the houses or does the dirty work. They take 'their' paycheck back to the traders. They travel the world, and rarely stay in one location for longer than a handful of months.