or Karak Japanese Mimana
Tribal league formed sometime before the 3rd century AD in southern Korea and lasting until its subjugation to Silla in the 6th century.
The people of Kaya are thought to have been closely related to the groups that crossed over from Korea to Japan a century or two earlier, and Kaya often enlisted Japan in its feuds with neighbouring Silla and Paekche . The Kaya people invented a unique 12-stringed zither, the kayagum .