The series was produced by Yokohama Animation Lab and aired from October 13 to December 29, 2020, on Tokyo MX, BS11, Wowow, and MBS.

Schaake causes an explosion at the local armory while Innumael disguises himself as an Imperial soldier to rescue Gizrella and reunite her with her daughter, who is suffering from a terminal disease and only has six months to live.

Elfriede meets up with her superior and reveals that a member of Headkeeper has been supplying funds to the Ministry of Energy, an agency under the direct control of the emperor.

Their car breaks down, forcing Schaake, Benjamin and a reluctant Innumael to walk to a nearby village to request some spare parts.

As Schaake returns to her family's mansion, Klaus tasks Innumael to buy an expensive bottle of wine for the leader of Headkeeper's local branch.

Members of Headkeeper gather at one of their hideouts in the capital, where they enact a rescue operation for one of their comrades trapped inside a lab.

As Arnold and Benjamin infiltrate the lab in which Elfriede was captured, Innumael overhears a conversation between Leocadio and his fellow soldiers.

As the Imperial army fights the rampaging monsters, Innumael's group returns to the hideout, only to find Helman already waiting for them.

Innumael and his new friend, Irma, escape to an abandoned residential area located underground, where they are ambushed by both Imperial soldiers and the mutated Elfriede.

An explosion caused by a grenade separates Innumael from Irma and he is forced to work alongside Conrad to return to the surface.

Leocadio reluctantly joins Damian's plan to escape the prison, but he is captured and thrown into a solitary confinement cell with an air ventilation shaft connected to the room of Minerva Guthiel, Schaake's mother.

Lord George informs Schaake's team about the Garnet Tablet, a stone with a prophecy about a future disaster the Empire is trying to prevent by moving the capital to a new city and constructing a device called the Luminous Seed, which can contain the power of cataclysmic light.

The development of the Luminous Seed attracted the attention of an anti-imperialist faction within Headkeeper, and one of its members, Minerva, was tasked with finding him, but she was captured and sent to prison.

The explosion of cataclysmic light causes the capital's inhabitants to become monsters as Leocadio to realize that the Luminous Seed he just recovered was a fake.

As Irma reunites with Arnold, the Imperial army prepares to activate a device called the Cradle, which will isolate the capital from the rest of the Empire to prevent the cataclysmic light from spreading.