Heat Haze was a lower shinobi village. The village became involved in a protracted war with Konoha thirty years previously. For three months there was a stalemate. During this period Kagerou Village dispatched Gennou to infiltrate Konoha and lay explosive tags throughout the village. He toiled in Konoha for two and half months waiting on his comrades, they never came. After eventually finalizing a peace treaty with Konoha, the weakened village was wiped out by Hidden Valley Village.