Keikoku

Profile

 * She tends to appear together with a foreigner who is bald and has a short moustache
 * She had a thin white butterfly bow on her hair.
 * She wears a partial Chinese Hanfu, along with a white transparent skirt which reveals her light pink panties.

Sengoku Rance
She doesn't appear in this route.
 * True History

She is one of the participants of the Emperor's Race which Kenshin is in.
 * Kenshin's Route

During the events of Isoroku's Route, she is one of the women who said that they had sex with Rance, and falsely states that her child with Steve is Rance's.
 * Isoroku's Route

She acts as Ran's doctor.
 * Ran's Route

Trivia
Real world reference: Yaobikuni / 八百比丘尼

She may be inspired from the historical figure Izumo no Okuni (by some similarities between them).