高城 夏目

A coroner who forbids anyone to address her as anything but "Natsume-san". Though she can be rather shady with her words and actions, her skill as a coroner is undisputed. Reiji met her during his time on the force, and still relies on her for important information. However, he tries to stay away from her as much as possible, as she tends to require "something" in exchange for information.

MangaGamer

She is the older sister of Shugo.