Nowadays, in Japan, housewives have replaced bankers and become the main force in the foreign exchange trading market, and invested far more money than institutions, which jointly promoted the financial turmoil. Frying foreign exchange has become a part of Japanese housewives' life almost like washing clothes and cleaning rooms. Even some media analysts believe that Japanese retail investment groups composed of housewives can actually influence the international money market and directly lead to the great turmoil in the international financial market.