At the beginning of the 19th century, Japan was under a policy of national isolation. A group of Dutch scholars who wanted to open the country secretly completed a copy of a map of Japan under shogunate control. They sent a young Dutch scholar, Michi-an, as a secret envoy to deliver the copy of the map to the Dutch. Michi-an, hiding himself and making his way through the deserted winter mountains, but the mountain guardians, led by Takayama, had begun hunting in the mountains with a description of Michi-an's appearance arranged by the shogunate.