The Iga and Koka clans often cooperated with each other, performed missions together and exchanged information. Although the Koka's traditions included ritual magic and spirituality more than Iga's traditions. Koka had lords called the Rokkaku-family (六角氏) who were Daimyos (大名). Koka signed a treaty with the Rokkaku-Family which states that as long as the Rokkaku Family doesn't interfere with Koka, the Koka-mono would cooperate with the Rokkaku-family when wars broke out.