Yes
You've got a bright counselor here. That one restoration of humanity really wasn't for nothing. Now I'll keep the jokes to myself.
Child of the Prophecy... That wand tells me you're the Fae of Paradise.
I am Sage Grim. My true name is Cu Chulainn. I am a servant of Pan-Human History.
I've been keeping watch here, as Divine Spirit Odin six thousand years ago and, since last year, as a proxy/substitute of Odin.
Chapter 19-3, Orkney
Sage Grim explains that he is the same person as the one Chaldea made a contract with in Fuyuki. He had returned to the Throne of Heroes once, but it seems that he still has the recollections of Ritsuka, Olga Marie, and King Arthur who held the grounds there.
Da Vinci confirms that Servants shouldn't have recollections of the war after returning to the throne. According to Grim, this is where the Divine Spirit comes in. In his case, the Divine Spirit acts as a deterrent.[/ICODE]