The Dragon Palace, also known as Ryugu, is a mythical underwater palace in Japanese folklore. It is often depicted as the home of the sea dragon Ryujin, who is believed to control the tides and marine life. The palace is described as being made of beautiful coral and adorned with precious jewels, reflecting the wonders of the ocean. In stories, the Dragon Palace serves as a setting for various adventures, where heroes may visit to seek wisdom or treasures. It symbolizes the mysteries of the sea and the connection between humans and the underwater world, highlighting the importance of nature in Japanese culture.