Weaving two storylines together: the first is the story of 18th-century shogunate intrigue and loyalty, and the second is a ghost story about a beautiful woman who falls victim to passion and evil.
Story follows high school student Saki Miyanaga and her classmates as they become absorbed in the game of mahjong. They target an upcoming national competition.
Born over a tofu shop in Osaka, twin sisters Reiko and Kyoko have very different characters. Reiko is diligent, and longs for a secure, middle class lifestyle. Kyoko is a free spirit, who seeks thrills and adventure.