When Beam arrived with Denji, fleeing from Reze, Aki and the Angel Devil retreated by car. The Angel Devil revealed that Power had told him about it. When Aki didn't reveal his limited lifespan to an old colleague in Division 2, the Angel Devil asked him about it but Aki refused to answer the question and asked where the Angel Devil had learned from. The Angel Devil accompanied Aki to a coaching session for Division 2.

The Angel Devil ends the story by admitting he'd rather be the country mouse. The country mouse gets to live in safety but without the delicious food that can be found in the city, whereas the town mouse gets to eat the delicious food but runs the risk of running into dangerous humans or cats. While taking cover from a rainstorm, the Angel Devil tells Aki the story of the country mouse and town mouse, one of Aesop's Fables. Aki kills the devil hunter instead, claiming that he can't even pretend to get along with the Angel Devil who acknowledges the sentiment. The Angel Devil discovers a dying civilian devil hunter inside the devil but refuses to obey Aki's request of putting him out of his misery. They eventually encounter a devil and Aki kills it. As they go out on patrol together the Angel Devil snacks on some ice cream and attempts to get out of working. The Angel Devil is partnered up with Aki at Makima's request, with her asking Aki to pretend to get along with the Angel Devil. Later as the remaining terrorists were being rounded up by the police and escorted out of the building the Angel Devil looked up and noticed flocks of birds responding to the Katana Man's cries of pain. When the gunman was knocked unconscious the Angel Devil moved him outside on Aki's orders. The Angel Devil shielded Aki when a gunman appeared, blocking a couple of bullets with his wing. He expressed annoyance at getting his shoes dirty and asked Aki Hayakawa for a handkerchief, claiming to be surprised that Aki would even get close to him.

He picked up a decapitated zombie head and took a bite out of it while his colleagues butchered the zombies. The Angel Devil participated in the raid against the terrorists led by Akane Sawatari. Due to the nature of Makima's ability, he forgets his past, and that he had killed everyone, was captured by Makima and hired as a Devil Hunter. After Makima came to his village and controlled him to demonstrate his ability, he killed everyone in the village, siphoning off their life spans and turning them into weapons. The Angel Devil was living happily in a village after he came to human world.

Angel Devil by Julie Mannino