Imperial Holy Grail War

The is a Holy Grail War developed by Ashiya Douman during the Human Order Revision Incident Grand Order within the altered history of the 1008 AD Heian-kyō Singularity. It is a ritual designed to complete the growth of his Fantasy Tree Naraka Mandala.
==History==
==Procedure==
All of the Servants summoned in this Grail War are Caster-class. The Masters were not even aware that other classes existed until the arrival of Chaldea.
==Participants==
Servant 	Identity	Master
None 	None 	Sakata Kintoki
Caster 	 	Watanabe-no-Tsuna
Caster 	 	Usui Sadamitsu
Pretender	 	Urabe no Suetake
Caster 	 	Murasaki Shikibu
Caster 	 	Shuten-douji
Caster 	 	Minamoto-no-Raikou
Caster 	 	Ashiya Douman
==References==
Category:Holy Grail Wars
Category:Terminology in Fate/Grand Order
Category:Human Order Revision