College student Kurumi Fukuga finally makes her long-awaited debut in FX (foreign exchange margin trading). Her reason? To recoup the 20 million yen her late mother lost in FX."I'll easily get 20 million yen back!" she vows, butthe world she plunges into is one where heaven or hell can be turned upside down in an instant. Unrealized losses, stop-loss orders, a heart that won't stop beating... Yet she still wants to buy, sell, and make money! With the addition of Yasuko and other eccentric FX warriors, the market heats up even more! A cute yet slightly (!!) dangerous money game where they fluctuate between joy and sorrow over the charts. Can Kurumi and her friends survive this turbulent world ?!