

Episodes
11 episodes · 2011
In a near future world, after the last great war, most of mankind 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 called Rat 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 Rat 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 No. 6! (Source: RightStuf)
E01Drowned Rat
★8While living in the idyllic No. 6, Sion has a fateful encounter with the wanted fugitive, Nezumi.
E02City Adorned in Light
★9Four years have passed since Sion's encounter with Nezumi. After losing his special privileges, including the right to live in Chronos, Sion now lives in Lost Town with his mother. One day while Sion is working as a supervisor at a park, he discovers a strange dead body.
E03Life and Death
★8Sion gives up everything he has to escape No. 6 with Nezumi. They manage to arrive safely at Rat's home, but it isn't long before a black blister on Sion's neck is discovered.
E04Good and Evil
★9Karan receives the news of her son being alive and sends a bizarre response. Sion and Nezumi visit a lewd former columnist to understand the meaning of this message.
E05Angel of Death
★10Rikiga comes with news that another person has aged and died in No. 6 . Safu visits a museum in No. 5. Nezumi suddenly faints on stage.
E06Hidden Danger
★8Safu returns to No. 6 after her grandmother's death and finds out about Sion. Meanwhile, Nezumi disagrees with Sion's goals.
E07True Lies - Empty Truth
★9Nezumi secretly proposes a dangerous job to Inukashi. Karan copes with Safu's arrest.
E08The Reason...
★9Nezumi leads Sion to the edges of the Western District to seek information from a legless old man belonging from No.6's past. Safu finds herself to be a sample of research at the correctional facility.
E09Stage for Disaster
★9With Rikiga's help, Sion and Nezumi are able to extract information on the correctional facility from a top No. 6 official. Upon learning that infiltration will be more difficult than they expected, they struggle to devise a plan just as Holy Day comes around. Yoming reveals his plans for the future to Karan. Safu encounters an unexpected powerful entity that helps her gain consciousness.
E10That Lies in the Abyss
★10The plan to rescue Safu is going as expected. But the further Sion and Nezumi go inside the facility, Sion’s attitude changes dramatically.
E11Tell Me the Truth
★10Sion and Nezumi have overcome many difficulties to reach Safu. However, Safu has now merged with Elyurias. Meanwhile, the people gathered to celebrate the Holy Day have been attacked by a large number of parasite bees. Will No. 6 survive? And what will be the fate of Sion and Nezumi?
