Six Secret Teachings and Three Strategies - Noble Demon King's Great Feather Fan

is the Noble Phantasm of Kiichi Hougen.
An Usen is a fan made of feathers, usually from hawks or eagles. It's usually a tool used to command troops, but in legends and paintings they appear as tools of Mystery used by Tengu and Xian that containin vast amounts of supernatural power. Because of the association with the Tengu, they are commonly known as Tengu fans. Kiichi Hougen uses one of these Tengu fans as their Noble Phantasm.
The Noble Phantasm better embodies the properties of Kurama Tengu, the Great Tengu more commonly known as of Mt. Kurama, rather than Kiichi Hougen herself. The winds released with its True Name reach the level of storms and cataclysm that can shake the earth and split mountains.Kiichi Hougen profile - translated by Comun
==References==
Category:Noble Phantasms
Category:Anti-Fortress Noble Phantasms
Category:A rank Noble Phantasms
Category:Noble Phantasms introduced in Fate/Grand Order