While attending college in Washington, D.C., Yuki Onda, the daughter of a Japanese samurai, meets and falls in love with Pierre Le Beau, a diplomatic attaché. At the outbreak of the Russo-Japanese War, Pierre is sent to Japan as attaché to the Australian ambassador. When Yuki's father discovers his daughter's romance with a foreigner, he becomes enraged and betroths her to Prince Hagane for political reasons.