A year has passed since the legendary Battle of Sekigahara. Now, under the Tokugawa Shogunate, all is peace in the Land of the Rising Sun. But the dashingly arrogant Maeda Keiji is finding this new world without war to be, well, pretty dull.

Akira Shiroyanagi is a high schooler who loves challenging games and Konpeito candy. One day, while heading to school, he encounters an enigmatic woman called Mion. After that, Akira and a host of other individuals are kidnapped and forced to become test pilots for a mysterious organization. They are given unique abilities and pitted against each other. Armed with his newfound, special ability, Akira becomes determined to take down this sinister group and beat their game. He has to rely on his guile to overcome all sorts of obstacles in a captivating battle of wits!