. "An ability that can be used to sneak up behind enemy shinobi, in order to approach them steathily in order to try and kill them, granted they are not of a higher level, or have a heightened awareness"@en . "An ability that can be used to sneak up behind enemy shinobi, in order to approach them steathily in order to try and kill them, granted they are not of a higher level, or have a heightened awareness"@en . . "Anyone"@en . "Ninja Art: Silent Kill Technique"@en . . "A"@en . . . "Ninpou: Sairento Ryuu - Ninja Art: Silent Kill"@en . "Offensive"@en .