1. Drowned Rat

While living in the idyllic city No. 6, Shion has a fateful encounter with the wanted fugitive Nezumi.

2. City Adorned in Light

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.

3. Life and Death

Shion gives up everything he has to escape No. 6 with Nezumi but, just when they think they're safe, another misfortune befalls Shion.

4. Good and Evil

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.

5. Angel of Death

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.

6. Hidden Danger

Safu returns to No. 6 after her grandmother's death and finds out about Shion. Meanwhile, Nezumi and Shion have a disagreement.

7. True Lies - Empty Truth

Nezumi secretly proposes a dangerous job to Inukashi. Karan copes with Safu's arrest.

8. The Reason...

In order to save Safu, Shion and Rat head to the edges of the Western District to meet up with an old acquaintance from Rat's past.

10. That Which Lies in the Abyss

The plan to rescue Safu is going as expected but, as Shion and Nezumi get deeper into the facility, Shion’s attitude changes dramatically.

11. Tell Me the Truth

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?