(ALFA-X) (ALFA-X's full name is JR East Class E956 "ALFA-X".) (ALFA-X comes from Japan.) (ALFA-X stands for Advanced Labs for Frontline Activity in rail eXperimentation.) (ALFA-X is an experimental prototype train unit created to test out new technologies in revenue service.) (ALFA-X refers to herself as the fastest train girl to exist in the world.) (ALFA-X wields two long broadswords with extra wide blades, in which she refers to as her 'trainswords'.)