Kyojitsu is a term heavily used in both samurai and shinobi records. The idea is that in warfare a strategic move is either a real and serious move or it is a deceptive blow. This is found in all warfare. For example, the movement of troops, the positioning of forces and the outward structure of a fortress. One of the main tasks of the shinobi is to discover if something is kyo or if it is jitsu. If it is reality or deception.