Fool's World (FSN)

Mikoto Majima's first memory was getting punched in the face in a club without knowing why he was getting hit. Bereft of all of his memories, he's forced to wander Mifune city in search of his identity. There, he makes an unlikely ally and makes more than a few uncomfortable revelations before he finds himself bound for Fuyuki City for the Grail War and the answers it promises.