Director Shinichiro Watanabe mixes a maturity rarely found in anime with a historical Japanese setting and a funky hip-hop soundtrack. Fuu is a spacey waitress at a teahouse where a sword fight breaks out between Mugen, a wild warrior, and Jin, a more composed ronin. In exchange for saving them from execution, Fuu demands that they accompany her on a journey to find "a samurai who smells of sunflowers."