Get Backers Season 1 Episode 13 Explosion! Fuuchouin String Style

An impostor who studied the same martial art as Kazuki impersonates him and then attacks Himiko. Luckily, the real Kazuki arrives and is able to defeat him. However, an old acquaintance of Kazuki's, Juubei Kakei, uses their distraction to attack as well. At the end of the episode, the building Kazuki has run into explodes and Juubei carries off an unconscious Himiko.