You were caught staring. Ran Yakumo is a nine-tailed fox. She is the familiar of Yukari Yakumo, Gensokyo's founder. She performs the basic duties that Yukari sees as beneath her. Because Yukari frequently hibernates, Ran is left with an abundance of free will and spare time. In this spare time, Ran took a familiar of her own: A catgirl named Chen. Chen is smarter than she looks but has to act cute around Ran to keep up appearances. Also, Ran is short for Randall. It's true!