A girl from a peaceful, Edo-era Japanese village seeks revenge for the death of a disgraced elder with the help of her sister and a lethal lady ninja nun. It's the time of the samurai and ninja, and Shogun Yoshimune rules Japan. Beneath the idyllic façade of the quant villages populating the countryside dwells a twisted sexual underbelly that affects the wealthy and impoverished alike. When one of the village elders commits seppuku after being raped, Kaede and her sister decide to take justice into their own hands and track down the perpetrator. Aided by a nun who believes in Old Testament-style retribution, the two sisters embark on a bloody mission of vengeance. Along the way, the three women slice and dice their way through lies and secrets while discovering that the story behind the rape is much more complex than any of them suspected.

Keiko, a young, newly hired weather woman, is eager to give her channel's flagging ratings a boost. She decides a panty shot might do the trick, so during her forecast she lifts her skirt, thereby capturing the attention and the hearts of viewers. Keiko's stunt creates such a stir of excitement over the weather report that viewers begin religiously turning in to see what she'll do next. However, this showboating routine earns the ire of Kaori, the beautiful and ambitious daughter of JTV's chairman. Jealous of her success and aching to take over the weather report, Kaori is willing to do just about anything to get what she wants.