- "All right, lady. If you want to make a wish, simply say "Kaijin"."
- —Seiryuu to Yui
Seiryuu is the god of war, and is associated with spring, wood and the rain. In Asian mythology local dragons are seen as benevolent and are often associated with water.
AppearanceSeiryuu materializes for the first time when Yui was devoured, he fights with Suzaku and is defended, and banished by Tenkou.
Priestess and the Seven Celestial Warriors
Seiryuu's priestess is Miaka's best friend, Yui Hongo. Seiryuu first appeared when Yui summoned him. He appeared as a handsome man with blue hair. Seiryuu then later gradually devours Yui by showing scales on her body. When Yui was completely devoured, Seiryuu appeared as an azure dragon. The beast god was summoned whilst the Seiryuu warrior Miboshi was summoning his highest-level beasts, which caused the buildings to rumble. Seiryuu was summoned by the power of the Shinzaho.
- "Seal Suzaku away."
- "Return Miaka to the real world."
- "Give Miaka Yuki the power to summon Suzaku."