Takanobu tribe

The Takanobu tribe was a tribe of warriors who lived before the Fall of the Kami, growing rice and waging war in the valley of the lands which would be known as Naishou province, alongside the Morikawa tribe and the Yamataru tribe.

Dawn of the Empire
When the samurai, followers of the Kami, first arrived in the region, they found it a prosperous place, for the Takanobu had slowly driven the other tribes out of the valley and dominated the area. All the tribes joined the nascent Emerald Empire.