Yukari Yakumo

八雲 紫, Youkai of Boundaries
The characters for Yakumo literally mean eight clouds but can also mean countless clouds and Yukari violet. Yukari is an elder youkai who dwells on the border of Gensokyo and may predate the existence of the realm itself. A good friend of Yuyukos and an acquaintance of Reimus. She is the selfappointed stewardess of the seal between Gensokyo and the outside world but doesnt do a particularly good job of it... Most of the time she is asleep leaving all the work to her shikigami Ran and Rans shikigami Chen. When she isnt she tends to amuse herself by pulling in unprepared humans from the outside world and stranding them in Gensokyo. A very irresponsible youkai. Her ability is the manipulation of boundaries and such boundaries distinguish her spellcards. Often though she just summons her shikigami and various others to create her danmaku for her. Source: Wikipedia