In other legends, the Tang dynasty general Xue Rengui is said to be the reincarnation of the White Tiger's Star. While his archenemy, General Yeon Gaesomun of Goguryeo is said to be the reincarnation of the Azure Dragon's Star.
In Japan, the Azure Dragon is one of the four guardian spirits of cities and is said to protect the city of Kyoto on the east. The west is protected by the White Tiger, the north is protected by the Black Tortoise, the south is protected by the Vermilion Bird, and the center is protected by the Yellow Dragon. In Kyoto there are temples dedicated to each of these guardian spirits. The Azure Dragon is represented in the Kiyomizu Temple in eastern Kyoto. Before the entrance of the temple there is a statue of the dragon which is said to drink from the waterfall within the temple complex at nighttime. Therefore each year a ceremony is held to worship the dragon of the east. In 1983, the Kitora Tomb was found in the village of Asuka. All four guardians were painted on the walls (in the corresponding directions) and a system of the constellations was painted on the ceiling. This is one of the few ancient records of the four guardians. In Korea, the murals of the Goguryeo Tombs found at Uhyon-ni in South Pyongan province features the Azure Dragon and the other mythological creatures of the four symbols.