Kusune is a ninja who possesses Iou's ninja tool, Tsuru-Kame. Him along with Gameru asked for ninja tools from Iou but he refused to give his ninja tools to outsiders. Naruto Uzumaki and Neji Hyūga fought Kusune and Gameru but were stalemated by Iou's prototype ninja tools. Kusune and Gameru were defeated by Tenten when she used Iou's latest ninja tool, Jidanda.

(source: Narutopedia)