It is 1853. Atsuko, adopted daughter of Shimazu Nariakira of the Satsuma clan and known to history as “Atsu-hime”, is en route by palanquin from her home to the castle of the Shogun in distant Edo. She is not happy with this, however, and resolves to struggle against her fate. In the mountains of Hakone she runs from her procession. Her governess Tae and the woman ninja Mitsu give chace. Continuing on in spite of their entreaties to come back, she looks up as the weird light of a meteor envelops them. The next thing she knows, she has gone 160 years into the future…