However, Ergastulum is ultimately an open-air internment camp for superhuman individuals known as "Twilights (黄昏, Tasogare) ", also called "Tags" for the government issued dogtags they're required to wear.
Twilights are the descendants of those who took the drug, Cerebret, developed during wartime to create enhanced soldiers, increasing their strength, speed and agility.
They are forever dependent on consistent doses of Cerebret to stay alive and avoid withdrawal symptoms.
They are kept under surveillance, having been herded into Ergastulum, and xenophobia between them and the "Normal" non-Twilight refugees who settled there is constantly brewing.
Two "Handymen" named Worick Arcangelo and Nicolas Brown take on jobs for both the mob and the police force that no one else can handle.
After a job of crushing a gang, Worick decided to spare and help the amnesiac sole survivor Alex under their wing for the time being.
One day, Nicolas and Worick are brought in by the police for questioning on the mass murders that have taken place in the sixth district.
Monroe is being attacked by a young Twilight named Doug, a member of the Pauklee mercenary guild.
There Nicolas battles Doug to a standstill, but their fight is interrupted by the guild's head, Gina and her high-ranked assistant, Ginger.
In addition, Daniel Monroe's right-hand man, Ivan, is revealed to be a mole for the Corsica family.
Loretta's bodyguards, Galahad and Marco momentarily hold them off until Nicolas arrives and engages the Hunters in a brutal fight.
Eventually they subdue Nic, preparing to kill him before his reinforcements arrive in the form of Worick, Doug, and most importantly Ginger who the two quickly realize they can't defeat.
As they search District 7, a young Twilight named Heather attacks them, mistaking Delico for Erica.
After the attack on Bastard, Nic is assigned to protect Loretta and Worick goes to help reinforce the Monroe mansion.
Striker swiftly decimates the estate's security but is eventually driven off when Worick injects him with a downer.
While Worick is recovering at Dr. Theo's clinic, Nicolas speaks to the doctor about an experimental version of Cerebret.
Monroe reveals that he was behind the attack on the orphanage as well as Erica's kidnapping and Ivan routinely sexually assaults her and is her “handler”.
At the clinic, Nicolas start to have a seizure as a side-effect to the experimental Cerebret and Yang is in critical condition.
While at the Destroyers’ warehouse, Constance escapes from her restraints and stabs Sig in the thigh with a shard of glass.
Shortly after the appearance of the Hunters and Destroyers in Ergastulum, Worick murders Miles and presents the severed head to the Corsica family.
The manga, which is written and illustrated by Kohske, was launched in March 2011 in Shinchosha's Monthly Comic @ Bunch magazine.
[18] Go Go Bunch ceased publication in 2018, and the manga's final chapter was featured in the last issue on February 9, 2018.
[56] The series is directed by Shūkō Murase and Kōichi Hatsumi,[57] with character designs by Yōichi Ueda and music by Tsutchie.
[62] Crunchyroll licensed the series for simulcast in France and French speaking territories (Belgium, Luxembourg, Switzerland, Andorra, Monaco, Tunisia, Algeria, Morocco, New Caledonia, and Quebec).
She was positive toward the characters and story, commenting that the author "makes some interesting choices with her characters", but felt the art was occasionally subpar, pointing out an image that was reused three times, and commented that the name of the city "sounds like some sort of stomach disorder".
[72] Reviewing the second volume, she remarked on improvements in the author's art style and praised the development of Worick, but criticized Alex's reduced presence.
[74] Reviewing the first three episodes of the anime, Gabriella Ekens stated that it was "a languid execution of a promising story".