Introduction to the Enclosed House: The Enclosed House, also known as the "Enclosed Dragon House", is a typical Hakka residential building rich in Central Plains characteristics. According to the investigation of historians, this kind of residential architecture is very similar to the style of the courtyards of nobles in the Central Plains. The Hakka ancestors moved south to settle due to wars, famines and other reasons. They not only spread the advanced farming technology of the Central Plains, but also maintained the original traditional style of building houses.