Japan, 1868. Sumiko Ōmuraji, the daughter of a good family, has always been far more interested in her secret riding lessons than in taking part in the tea ceremony.

When her older sister’s suitor is welcomed to the family home for the first time, the young lord falls in love not with
the sister, but with Sumiko. She resolves not to stand in the way of her sister’s happiness, and decides that she has only one option: she must flee.

The samurai Tanaka, who has just begun service with Lord Ōmuraji, is tasked with the mission of finding her. He is in for many surprises. Like a kitsune, the legendary fox said to be able to take on human form in order to seduce men, the beautiful and mischievous Sumiko may well be the most formidable opponent the samurai has ever faced.

But Tanaka is not the only one looking for the young woman, because another rider heads off to hunt for her...