Ryujin was a legendary water god and dragon in the world of Japanese mythology. Another name for this dragon is Owatatsumi no kami, which means “the great god of the sea” in English.

According to Japanese mythology, Ryujin lived in a palace known as Ryugo-jo under the sea. It is believed that he served as a guardian for the Shinto religion and would welcome humans into his kingdom if they fell into the sea. He and his numerous daughters made frequent appearances in various legends.

Japanese dragons were unique in the sense that they served as water gods that ruled the oceans, fought with other gods, shapeshifted into humans, or vice versa. They were also believed to signify wisdom, posperity, and strength.