Wait .... So, Yukari is introducing herself as the 'plenipotentiary delegate' of the Hakurei Shrine Maiden, right? Is that just for this incident, that she's doing the sealing as a representative of the Shrine, or is she saying that she works for the Hakureis?
Entities of great strength, intruders from uncharted lands, hear me......I am the plenipotentiary delegate of the Keeper of Illusions, the Hakurei shrine maiden......embrace my existence. —For now......your names and powers shall be sealed in Eternity.I am Remilia Scarlet.My sister, Flandre Scarlet.My henchman, Hong Meiling....the being known as youkai sage Yakumo Yukari...