Dragon, Ie wo Kau.

Letty is a red dragon who is terrible at nearly everything a terrifying dragon is expected to do. He is timid, weak, and eventually thrown out by his family after failing to guard their eggs. Alone in a world where dragons are seen either as monsters to slay or valuable materials to harvest, Letty decides that survival begins with finding a safe home. He is rescued by Dearia, an eccentric elf who happens to be both an architect and a real-estate agent, and accepts his offer to help. From haunted castles to homes built for very unusual creatures, house hunting becomes a continuous adventure that proves finding the perfect property can be more dangerous than fighting heroes.