Character

Kojiro Sasaki

Assassin's supposed True Name is that of the mythical Japanese swordsman, Sasaki Kojirou, whose real name was speculated to be Tsuda. His true name was unknown, and to be more specific, he never had a true name. Kojirou is known as a master swordsman whose existence is doubted even though his name remains recorded in history. He did not actually exist, so it would be impossible to summon the real thing as a Servant. The person summoned in his place is not a Heroic Spirit, but an existence closer to that of wraiths. If there was to be a database for all of humanity, he is the piece of data that best matches the parameters of Sasaki, so his personality would become Kojirou's personality and his monumental feats would become that of Kojirou rather than his own.