Akagi Shigeru is a young, white-haired mahjong genius. One summer in 1965, he ends up facing off against Washizu Iwao, Japan’s King of Darkness who has amassed enormous fortune and power, at the request of his acquaintance, the rogue detective Yasuoka. As the observer, Ogi Takeshi, a leader of the henchmen of Inada-gumi watches over them, mahjong with special rules called Washizu Mahjong begins. It is a life or death struggle with Akagi’s fresh blood and Washizu’s entire fortune at stake.