Tatsuhiko Shido is the hero of the "NightWalker" anime series. He is a vampire without a past. Almost everything from his mortal past has been erased from his memory. Now he lives in Yokohama's Kanagawa district, where he works as a private investigator. His main mission, however, is to rid mankind from the scourge of "nightbreeds" that feed of it. Because of his vampiric nature, Shido is able to form weapons from his own blood. These weapons usually come in the forms of swords, whips, poles, or droplets that he can spray on his targets.