In 2084, a teenage girl of mixed race, Violetta Akan, is destined to live out her days in a town behind one of fifteen circular walls that separates her and others like her from civilization. Hart Kang is the widely adored son of a Governor who finds himself curious to know what actually goes on inside the walls. The last thing he expects to find when he sneaks into the Teorrain is a Crossed girl who challenges his way of life.