[Ithekro]

That woman is known as Nomura. She's basically Takano's contact with "Tokyo" and the woman who is sort of pushing Takano along the path of proving her grandfather's work. Possibly also the one assigned to make a situation so the entire Hinamizawa business gets covered up (so that no one will find out about the illegal biological weapons research being done on Hinamizawa Syndrome). She is played by Rie Tanaka using her old Suigintou voice from Rozen Maidens. She is only seen in the last main arc in Higurashi Kai.