The Imperial Holy Grail War (天覧聖杯戦争?) 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 | MedeaWP | Watanabe-no-Tsuna |
| Caster | Helena BlavatskyWP | Usui Sadamitsu |
| Pretender | Count CagliostroWP | Urabe no Suetake |
| Caster | Charles BabbageWP | Murasaki Shikibu |
| Caster | Paracelsus von HohenheimWP | Shuten-douji |
| Caster | Nursery RhymeWP | Minamoto-no-Raikou |
| Caster | Ashiya DoumanWP | Ashiya Douman |