Deceived Shinigami! The World Collapse Crisis Bleach : Season 13 Episode 18

Ichigo battles Muramasa in order to save Head Captain Yamamoto from captivity. Meanwhile, Yoruichi, Shunsui, and Jushiro notice that the Zanpakuto are trying to prevent them from reaching Ichigo, and quickly realize that he was the key to Muramasa's plan all along.