In 2027, Li Xinghe traveled to a place that is 99.9% similar to Earth and became a foreign affairs officer stationed in Tokyo. In the historical changes of the collapse of the hegemony of the US empire, he stood at the forefront and watched the changing situation.Tokyo, the capital of international intelligence, is home to luxury cars, celebrities, and left-wing fighting.The emperor fell, the prime minister was killed, the yen plummeted, and hegemony collapsed.Self-Defense Force tanks took to the streets and U.S. ships withdrew from Tokyo Bay.Little people are changing history behind the scenes.”I’m not being modest. How can I, a nobody, become the emperor in Tokyo?””Destroy the American Empire, me?”