本作改编自荣获第37届山本周五郎奖等九项大奖的青崎有吾的同名小说，在“猜拳”“石头剪刀布”“不倒翁跌倒了”等众所周知游戏的基础上加入独创规则，描绘“极限脑力战”。 故事始于一位在胜负之事上异常强大、令人捉摸不透的女高中生射守矢真兔，应好友矿田风日之请，参与争夺学园祭屋顶使用权的游戏。挡在真兔面前的，是一位位天才高中生与各种别出心裁的游戏。为了争夺学园祭场地、保住社团活动，甚至赢取相当于9000万日元的筹码，她们投身于一场赌上学生生活与青春的激烈较量。

Rookie detective Aiba, a native of Tokyo's red-light district (with all the attitude and methods that entails), must team up with Cho, a counterpart from Seoul with equally questionable practices, to track down a dangerous criminal spreading terror across Japan, Korea, and the Philippines. While the relationship between the two investigators is frosty at first, they'll have to learn to work together quickly in the face of such a formidable adversary.