Kaze no na wa Amnesia

The amnesia wind came silently and swept away all mankind's knowledge. Human civilization vanished overnight as people forgot who they were, how to work the machines, how to speak... everything. Now, two years later, a young man explores a world reduced to barbarism, a nation once known as America. Accompanied by a mysterious woman, he searches for those responsible for stealing their memories. (texto oficial de la distribuidora)