Sōryūsen (双龍閃, Twin Dragon Flash) - Seemingly a simple Battōjutsu strike, Sōryūsen is the first of Hiten Mitsurugi-ryū's two-step Battōjutsu moves. After the first strike with the quickened sword, the user wields the empty sheath along the same path as a blunt weapon. After the sword strike lands, the sheath strike delivers a pulverizing blow capable of crushing bone and shattering wood, but if the sword strike misses, the sheath strike acts as powerful insurance, preventing an opponent's attack and delivering a crushing blow when it's least expected. This move is first seen being used by Kenshin against Udō Jin-e