The extra stage boss of Touhou 17: Wily Beast and Weakest Creature, the "Leader of the Keiga Group". She is a black haired with a long ponytail, black winged pegasus girl with a horse tail and unrivaled leg strength.
She is the leader of the wolf spirit that can take the protagonist to the Animal Realm, and teamed up with the other groups to stage the Hell invasion to overthrow Keiki.
Because she is a "Kurokoma", the flying horse of Shoutoku Taishi, she is sometimes drawn with Toyosatomimi no Miko.
Due to her cowboy hat and boots and overall appearance and personality, she is also in various cowgirl themed drawings.