After a mysterious attack wipes out the major cities of 19th century Japan, Korea, and China, survivors from all three lands find refuge on a hidden island and build a new society. Hana, the orphaned daughter of Korean peasants, and Kenichi, son of a great samurai leader, have little in common except for a mutual disdain for the other.
Hana and Kenichi have been forced down separate paths, but both lead back to the Island. While Hana settles in and learns more about the Shogun’s rise to power, Kenichi struggles to survive by himself out in the wastes of the mainland and realizes he might not be the only survivor out there.