Prologue: What Am I?

This is another take of the original story of Fate/Extra, another flavour indeed.

Given with the opportunity to participate in a Grail War, a Magus known as Alfred Birdwhistle once again rises from ashes into a vast sea of Knowledge.

In a scenario he had never seen before, the Moon Cell, what will happen to his future and destiny? And more importantly, what happened to his memories back on Earth? Did he ever have a life there to begin with?