In a city built on the ashes of our world, what you don’t know…WILL kill you! In a near future world after the last great war, most of mankind now lives in a handful of city states. There, for the privileged elite, life should be perfect. But for young Shion, the only thing perfect has been the nightmare his life has become since letting a strange boy named Nezumi spend the night in his apartment. Banished to the outskirts of the city and stripped of all privileges for helping the mysterious stranger who has since disappeared, Shion now finds himself in even worse danger as his inquiry into a new series of mysterious deaths results in his being arrested on suspicion of murder! But even as Shion is being sent to the city’s Correctional Institute, the long missing Nezumi reappears to rescue him! Now, on the run, the two young men have only one chance at survival: uncover the mysterious secrets that lie at the sinister heart of City Number 6! (Via TAN)