Ryuu Toshiro

 Ryuu Toshiro (竜俊朗, Toshiro Ryuu) is a chūnin-level shinobi of Ōkamigakure's Toshiro clan and the only possesor, at the moment, of his clan's kekkei genkai, the Acid Release. He became an international criminal after attempting to kill the Fifth Urufukage. He joined the mercenary organization: Reikane and is currently partnered with the kunoichi Ayumu Daichi.