"Kousa" is the Japanese name of the gold dust created by the Nether World Priest Badamon. The kousa was used to force Ryo to transform into the Shiroi Kikoutei against his will. It was also used on Tenku no Touma, Naaza, Rajura, and Anubisu to help Ryo create the Shiroi Kikoutei. Appeared in episode 32 of Yoroiden Samurai Troopers.