Wardens of Romance

The supernatural post office operates on the edge of what ordinary people can tolerate, and you are its only human employee. The daily work involves handling items that would break a less resilient person. When a mysterious package arrives that is clearly not ordinary, three demon brothers appear and insist on accompanying you on what turns out to be the most consequential delivery of your career. The path is not clearly marked. The company is attractive, if occasionally overwhelming. The fourth demon is not a comfort to think about.