A brunette with dreamy eyes, a penchant for quoting proverbs, and a "Sweet Tooth for Grapes" (the source of her given name, which translates literally as "grape fang"). Although Nagamitsu, her husband, calls her Osen, "Budoukiba" is her name.
She first appears in the restaurant scene plying Jin and Mugen with a round of sake.
She convinces them to accompany her to a bar to try grape wine, drinks Jin under the table, and drugs Mugen, then picks their pockets and dumps them in the street in front of their inn. She is seen again walking down the street in front of the pawnshop, drags Nagamitsu off to the ship with her, and is last seen commenting on the stupidity of men.
(Source: Neko-san's Guide to the Characters of Samurai Champloo)