Born in the Southern Air Temple, Afiko was seemingly normal growing up, but he grew jealous when Aang's identity as the Avatar was announced. Envious, Afiko betrayed his people by revealing the temple's location to the Fire Nation.
Fire Nation soldiers stormed the temple and slaughtered the other monks, but they were too late to catch Aang, who had run away from home shortly before the assault. Afiko was instrumental in engineering the genocide of his fellow Air Nomads, earning a place as Fire Lord Sozin's close adviser. He also seemed to have aided Sozin in attacking the Earth Kingdom, in that he is often shown blocking or dispersing earthbending attacks and attacking earthbenders. The traitorous monk died long before Aang's return and the subsequent undermining of all Afiko's work. In the end, despite his loyalty to the Fire Nation and his achievements, historical records indicate that Afiko met his demise in the war's fifth year, as Fire Lord Sozin had him killed for being a traitor.