I Am Here*****

A high school student jumped off a huge rock and accidentally traveled to a desert island in the Mongolian Dynasty. With what he learned in high school, he started from scratch and built a team. Kublai Khan's two expeditions to the Japanese ended in failure, but the protagonist single-handedly defeated Liuqiu and fought against the Japanese pirates, completing his hegemony! This book is semi-fictional, follows the main line of history, and finally returns to history!