Riva is a 'high-rise diver,' a top athlete with millions of fans, and a perfectly functioning human on all levels. Suddenly she rebels, breaking her contract and refusing to train. Cameras are everywhere in her world, but she doesn't know her every move is being watched by Hitomi, the psychologist tasked with reining Riva back in. Unquestionably loyal to the system, Hitomi's own life is at stake: should she fail to deliver, she will be banned to the 'peripheries,' the filthy outskirts of society.