A female detective of the Metropolitan Police Department who volunteered to undercover an unscrupulous company that communicates with the underworld in order to take the murder of her lover who was killed during the undercover operation. What is the unexpected ending that awaits her after a fierce battle with the "Axis of Evil"?

A 168-hour nonstop amateur women's mahjong tournament is being held to determine the best in Japan, with a prize of 100 million yen. Four women, each with a dark past, participate...