From a black company to another world! Hinata, an employee of a black company, is summoned to the otherworldly human country of Exia as a "holy woman." However, it is also a black country with corrupt internal conditions. Hinata tries her best to do well at her new job, but she is cut off as an obstacle by the appearance of a junior saint. She ends up as a prisoner of the demon nation of Dominus, where she meets a young demon tribe member named Atra, with whom she complains about her work and they hit it off! And then the story takes an unexpected turn...!