Dare ga Kenja wo Koroshita ka?

In the near future, humans can now use augmented reality without any kind of special device. In an Amish colony in Pennsylvania, at the funeral of Leonardo Mitterrand, after government agents appear to try and take his body away, Leonardo's daughter Noel learns that he was in fact a famed hacker that stopped a cyberterrorist attack two years ago, and that his death may not have been accidental.