Angolmois - Genkou Kassenki

Synopsis

In the 13th century, the Mongolian Empire rapidly expanded across the globe. Later historians who studied Nostradamus's prophecies would say that Mongolia was the birthplace of the "Great King of Terror," Angolmois. Eventually, the forces of the Mongolian Empire would turn their attention toward Japan; 1274: The Bun'ei Invasion. The exiled samurai Jinzaburo Kuchii is in Kamakura when he encounters this invasion face-to-face.

A fresh look at the great battle that rocked all of medieval Japan: the Mongol Invasion. It shows how the people of Tsushima panicked, struggled, and eventually rose up against the overwhelming forces of their enemy.

Synopsis & details from MangaUpdates