Sion's life turns upside down on his 12th birthday when he aids a fugitive named Nezumi. Four years later, their paths cross again as Sion unravels the dark secrets hidden within the utopian city of No. 6.

Episode 1
Drowned Rat
July 8, 2011
While living in the idyllic city No. 6, Shion has a fateful encounter with the wanted fugitive Nezumi.

Episode 2
City Adorned in Light
July 15, 2011
Four years have passed since Shion's encounter with Nezumi. After losing his special privileges, Sion now lives in Lost Town with his mother. One day at his park supervisor job, Shion discovers a strange dead body.

Episode 3
Life and Death
July 22, 2011
Shion gives up everything he has to escape No. 6 with Nezumi but, just when they think they're safe, another misfortune befalls Shion.

Episode 4
Good and Evil
July 29, 2011
Karan receives the news of her son being alive and sends a bizarre response. Shion and Nezumi visit a lewd former columnist to understand the meaning of Shion's mother's message.

Episode 5
Angel of Death
August 5, 2011
Rikiga 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.

Episode 6
Hidden Danger
August 12, 2011
Safu returns to No. 6 after her grandmother's death and finds out about Shion. Meanwhile, Nezumi and Shion have a disagreement.

Episode 7
True Lies - Empty Truth
August 19, 2011
Nezumi secretly proposes a dangerous job to Inukashi. Karan copes with Safu's arrest.

Episode 8
The Reason...
August 26, 2011
In order to save Safu, Shion and Nezumi head to the edges of the Western District to meet up with an old acquaintance from Nezumi's past.

Episode 9
Staged for Disaster
September 2, 2011
With Rikiga's help, Shion and Nezumi are able to extract information about the correctional facility, learning that infiltration will be more difficult than they expected. As Holy Day approaches, they struggle to devise a plan. Yoming reveals his plans for the future to Karan. Safu encounters an unexpected powerful entity that helps her gain consciousness.

Episode 10
That Which Lies in the Abyss
September 9, 2011
The plan to rescue Safu is going as expected but, as Shion and Nezumi get deeper into the facility, Shion’s attitude changes dramatically.

Episode 11
Tell Me the Truth
September 16, 2011
Shion and Nezumi have overcome many difficulties to reach Safu, but the Safu that they find is not what they expected. Meanwhile, those gathered to celebrate the Holy Day are attacked by parasitic bees. Will No. 6 survive and what will be the fate of Shion and Nezumi?