Rurouni Kenshin - Battle in the Moonlight, Vol. 2
It's disaster for Kenshin when he runs into Jine,  a Manslayer from the Revolution. Jine has always wanted a chance to fight the Battousai, but Kenshin's refusal to kill makes the victory too easy. Determined to bring back the Manslayer he had always heard about, Jine uses Kaoru to re-awaken the murderous anger hidden inside Kenshin!