Harakuro Shiro to Nora no Kuro

From [Exiled Rebels Scans](https://www.mangaupdates.com/groups.html?id=8795): Hiro ran away from the countryside for the sake of finding a better life. Unable to find a job, he ends up on the streets like a stray black cat. Then, to his surprise, he is picked up by an “angel.” However, this “angel” named Kai may be more like a devil than he expected.