Muon Satsujin no Jutsu | Silent Killing Technique I 無音殺人術の術     • Muon Katsuoto no Jutsu | Silent Stepping Technique I 無音靴音の術 Type: Ninjutsu [ Silent Killing ]  Rank: Genin Cost: 60 Chakra + 1 Murder Charge Effect: [Opening] to the first Silent Killing Style technique used while this technique is active. The Silent Killing Style technique used must be equal in rank to this technique to receive the opening effect.  Additionally the opponent is [Impaired Hearing] for 2