In the future world, humans are graded according to genes. The "left behind" at the bottom were turned into monsters by the system, and their identity and culture were completely erased. Engineer Ethan was framed as a Forsaken and exiled underground. With the help of the rebel Leah, he discovered the huge lie hidden in the system: these "monsters" are all living people! They join forces to resist, just to regain their deprived identity - "who am I" and to find a way out for the future of mankind.
