Kojirou is best known as Musashi's legendary rival, though he gets pulled into the story when Onimaru resurrects him specifically to take down Yaiba. He spends most of the series trying to either defeat Yaiba outright or get his hands on the Raijin sword, but eventually teams up with him to fight Onimaru instead. His weapon of choice is an extendable sword, which sets him apart in combat. Fans often note his reputation as a serious womanizer, which defines a lot of his character outside the main conflicts.
Content compiled by AnimeList.moe from publicly available sources.
