The Mail Carrier Harpy Who Cannot Fly

The Post Office. A place that carries various things. In the rapidly developing Rooni Kingdom, the postal network was expanding in tandem with the construction of airships. Among the postal workers of such a kingdom, there was a harpy girl named Rain. Along with her coworker, a noble's daughter, she lived a life of waking up early in the morning to carry out her duties as a postal worker, and sleeping at night. This is the story of her utterly ordinary day.