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A master hairstylist who speaks in antiquated Japanese, might have a grudge against Sister.
In the manga, Last Samurai claims to have been a great hairstylist who worked on the hair of famous people. However, he grew sick of it and ran away until he found himself under the bridge on the Arakawa River. Later, he ran into Hoshi (Star) and had a little chat with him, and Star inadvertently woke his "Samurai spirit." He decided to speak and live as a real, old-fashioned samurai. This even included cutting his hair and styling it into a topknot. However, he still uses his skills to cut the hair of the various people living under the bridge.