Yukari Yakumo

Yukari Yakumo is an elder yōkai who dwells on the border of Gensokyo and may predate the existence of the realm itself. A good friend of Yuyuko and an acquaintance of Reimu, she is the self-appointed stewardess of the seal between Gensokyo and the outside world but often leaves the work to her shikigami Ran and Chen. Her ability involves the manipulation of boundaries, which is reflected in her spellcards.