Soyo Tokugawa

Younger sister of the shogun Tokugawa Shigeshige. Spent a day with Kagura, after she sneaked out of the palace due to boredom and loneliness. She surprisingly got hooked on sukonbu, thanks to Kagura's influence. After befriending Kagura, she became quite sadistic. Shinpachi said that Soyo Hime, Kagura and Imai Nobume are the three sadistic sisters. All things aside, she is a cheerful girl.