detective agency "Astrea"

A girl named Audrey, a psychotherapist, lost her license and then her job. She went looking for work, as she was about to run out of food and soon had to pay the rent. After several weeks of searching, she found a detective agency looking for a psychological evaluator. Without thinking, Audrey applied, and they accepted her application within minutes.

The next day, the girl was already standing in the doorway of a huge house, like some kind of palace. The various details complementing each other and the house itself attracted the girl. She knocked and began to examine the details until someone opened the door for her.

She was met by the agency's head, Mikael, who also introduced himself to everyone. The first person Audrey noticed was a curly-haired brunette who introduced himself as David, the agency's lawyer. Then came a green-eyed, good-looking guy named Raphael, also a psychologist and evaluator. Next came a dark-skinned guy, Cassiel, one of the employees responsible for security. A little later, a dark-haired girl approached them. A felony, they are a police officer who transmits information. As Mikael explained, they all live under the same roof in this building.

from the third person

They are all immortal—some are angels, some are demons. Cassiel, Felonia, David are demons, Mikael, Raphael are angels, Malek is immortal.