Bleach Episode 237 English Subbed Episode Title:Suì-Fēng, Surrounding the Zanpakutō.Episode Description:Ichigo reports his findings of Muramasa's abilities to Ukitake, Kyōraku and Retsu Unohana. In order to find out about Muramasa's effects on zanpakutō, Ichigo and Ikkaku Madarame patrol the Seireitei to seek out the entities. Meanwhile, someone breaks into a compound and knocks out the Soul Reapers guarding the area. Marechiyo Ōmaeda stumbles on the unconscious guards and investigate, only to encounter his zanpakutō spirit, Gegetsuburi, and Ikkaku's zanpakutō spirit, Hōzukimaru. Ōmaeda and Gegetsuburi are just about to fight when Ichigo and Ikkaku interrupt. Ōmaeda is knocked out of the fight, leaving Ichigo to battle Gegetsuburi, while Ikkaku fights Hōzukimaru. Ichigo defeats Gegetsuburi but Ikkaku is wounded by Hōzukimaru's bankai. Just as he attempts to continue the battle, Ukitake, Kyōraku and Suì-Fēng arrive to surround Hōzukimaru, but he uses his bankai to get away. However, they manage to obtain Gegetsuburi. Ichigo goes after Hōzukimaru, but the entity escapes when Senbonzakura's petals block Ichigo's route. Ichigo discovers that the attack was from Byakuya, who disappears.