"To start with, she is a youkai that you do not want to deal with. Even besides the fundamental issue of the danger of her ability, this youkai will appear anywhere unexpectedly, her character is lacking in human sentiment, and her behavioral principles are completely different from those of humans, to name a few of her issues."

— Hieda no Akyuu

Species Youkai

Abilities Manipulation of boundaries

Age At least 1,200 years old, older than the history of Gensokyo itself

Occupation Sage, maintaining Gensokyo's balance and order

Location Somewhere along the boundaries of Gensokyo