She's everything. He's just Ken.

To live in Barbie Land is to be a perfect being in a perfect place. Unless you have a full-on existential crisis. Or you're a Ken. Barbie and Ken are having the time of their lives in the colourful and seemingly perfect world of Barbie Land. However, when they get a chance to go to the real world, they soon discover the joys and perils of living among humans.