A Wind Named Amnesia

A Wind Named Amnesia also known as Wind of Amnesia in the United Kingdom, is a Japanese novel authored by Hideyuki Kikuchi, originally published in 1983 by Asahi Sonorama.

Synopsis:

The Apocalypse didn't come with a bang, but with a whimper. Silently, the amnesia wind swept away all of mankind's knowledge. Thousands of years of human civilization vanished overnight as people forgot how to use the tools of modern civilization - who they were - how to speak - everything. Technology decayed as mankind was reduced to level of cavemen.

Now, two years later, a young man explores a nation reduced to barbarism - America. Miraculously re-educated after the cataclysm, he is accompanied by a young woman - somehow spared the obliterating effects of the amnesia wind. Pursued by a relentless killing machine, they search for those responsible for stealing their memories. [Source: Wikipedia]

Download OVA watch it online. Visit the OVA Download Page