Loanna asks her Iya why everyone calls her two-headed and Iya tells the story of what happened just before Loanna was born; how she bartered with the god Ajala to receive two heads instead of one.

Three girls in three different worlds, ranging from New York City to a fantasy kingdom, all grow diamonds in their bodies when they are sad, and each is exploited for this in a different way. As they grow older, this ability determines the shape and outcome of their lives.