In a Pangean world segregated by five ‘Great Plateaus’, a girl named LAVY and her gang of 8 adolescents such as herself, surf trains in a city called the Nest in the first Plateau—the poorest of the poor 5 Plateaus.

They’re not risking their lives for the thrill but because...well, they're train robbers—literally, and stealing is the only way out of their world.