Japan surrendered unconditionally on August 15, 1945, but 13 days later, U.S. Marines landed in Japan from Yokosuka, and soon Japan was all gone.
Right-wingers in Japan who committed crimes in the war needed to be tried by the Allies. However, those people had crooked thoughts in order to evade or mitigate the guilt, so they wanted to throw sugar-coated shells at the US army.
In order to increase the number of recruits, the Japanese government has thought of using vague concepts and even tricks to attract women from good families to join.
Although MacArthur expelled the "enthusiastic" Japanese women from the Allied headquarters, this did not prohibit this behavior of the Japanese, but was more unscrupulous.
After this time, these Japanese women will take the initiative to associate with these American soldiers, because they can earn US dollars from them, and some people fantasize that these American soldiers will take them back to the United States.