Ep 13 – “A Killer Without Mercy: Fight to the Death Against the Cho of the Juppongatana” / “Osorubeki Mujō no Shikaku! Juppongatana Chō to no Shitō” (恐るべき無情の刺客! 十本刀·張との死闘)
Kenshin finds that Chō has kidnapped Iori in order to obtain the final masterpiece of Shakku for himself. Kenshin is forced to choose between keeping his vow not to kill and saving the baby, ultimately deciding to do both by drawing the sword he has now been given. However, it is revealed that the sword he is holding happens to be the final masterpiece of Shakku, the perfected reverse blade sword, merely stunning Chō. Kenshin then leaves to find his master, Seijuro Hiko, in order to learn the final technique of the Hiten Mitsurugi-ryū battōjutsu.