The Thirty Years' War is wreaking havoc across Europe in the 17th century, and despite sending troops to The Holy Roman Empire, the Netherlands experiences major desertion, except for a lone Japanese soldier.
Issak, who hails from East Asia, embarks on a quest to locate the culprit responsible for murdering his master and stealing a priceless possession. Certain that the perpetrator has enlisted in an opposing army, Issak signs up as a mercenary to track down his foe and seek vengeance.