Welcome to the year 2025, on the new island of Jellicoe, USA. The party nation of the new world, it is the place to be. It's chic, it's fresh, and densely populated by highend young adults. But with so many youths in proportion to adults, trouble is never far around the corner. It's a dog eat dog world, and everybody is struggling to make a name for themselves. This is the world of Sixunder, where youth reigns.