RPG Real Estate is a Manga/Manhwa/Manhua in english language, 4 koma series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

The story begins 15 years after the demon king was defeated and the world has become peaceful. Kotone, who graduated from school and became a magician, inquired the kingdom-affiliated RPG Real Estate in order to find a new home. In reality, RPG Real Estate was Kotone's place of employment, and together with Fa, a demi-human, the priest Rufuria, and the soldier Rakira, they help support the searches of new homes for the customers with various circumstances.