There is an ancient prophecy shared amongst the kingdoms of Chikyu- 2,000 years after their fall, the Territorial Empire Bugnarok will once again rise up to kill all humans. However, five kings and their guardian deity, King-Ohger, will stand up to face them. This is the story of kings who will defend Chikyu, as well as a coming-of-age story for one young man who will achieve kingship henceforth.
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.
Miyanaga Saki, a first-year student at Kiyosumi High School, lacks enthusiasm for mahjong and plays it so that it will end with neither a win nor a loss. One day, she is influenced by Haramura Nodoka’s genius mahjong tactics and decides to join the mahjong club. Nodoka is the titleholder of the national junior high school mahjong tournament. Together with Nodoka and the other club members, Saki contends for the title against formidable opponents.
