Kaori Koshiba

Kyoshiro rescues Shizu who was being abused by her husband, even since she had been violated by the man posing as Ieyoshi. He then learned that Ieyoshi had been acting oddly ever since returning from Kyoto six months ago. Sir Fumiya's investigation of the O'oku (Shogun's harem in Edo Castle) uncovered the plot and reported that Sir Higo-no-Kami had been controlling the fraud. That's when Kyoshiro heads to Kyoto to find clues... (themoviedb)

Sakai Nobunari an Elder in 'Honmaru'and Mizuno Tadakuni an Elder in 'Nishinomaru' have been at odds behind the scenes over the marriage of Tokugawa Ieyoshi, heir to the Shogunate. Kyoshiro, who has come back in Edo after 3 years is involved in it against his will. It's because he gets to know Lady Mihoyo who is a spy for Sakai and looks exactly like his late mother. As she couldn't complete her mission she has nowhere to go. Kyoshiro shelters her from both parties that seek her life. (themoviedb