Gongjin is a fictional coastal town in South Korea, prominently featured in the popular television series Hometown Cha-Cha-Cha. The town is known for its picturesque scenery, charming streets, and vibrant community life, making it an appealing setting for both locals and tourists. In the series, Gongjin serves as the backdrop for the story of a city dentist who moves to the town and encounters various residents, including the resourceful handyman Hong Du-sik. The interactions among the characters highlight themes of love, friendship, and the importance of community.