Fifteen-year old Fu works as a waitress in a tea restaurant. Her life flows casually until a few samurai settle there and start causing problems. At that moment, the shaggy-haired Mugen shows up out of thin air and offers her to quickly beat up the samurai in exchange for 50 meat balls. At the same time, at the other side of the village, the ronin Jin clashes with the security guards of the richest man in the village. Mugen successfully defeats the samurai and sends them to bring him the strongest samurai in the village but finds out that they've already been defeated by Jin. Shortly after, they begin a duel, causing the restaurant to burn in flames, which ends up with the death of the only son of the main magister. This leads to their arrest. Fu rescues them from execution and in exchange, they help her persue the samurai with the sun flower smell.