Caster clapped his hands. The sides of the whole vanished, revealing thousands, tens of thousands, hundreds of thousands of people falling.
“I don’t know about you, but I don’t want to kill the eight hundred thousand people of Snowfield just yet.”
At that point, the boy vanished — only to reappear as a giant, seemingly kilometers tall.
While still falling down the pit — which appeared after all to be bottomless — he stated his wish.
“So... how about we make a deal for the present?
“A deal with little old me, who the foul-mouthed peasants used to call... a ‘demon.’”

Fate/Strange Fake: Volume 4, Chapter 12 ("Day 2, Morning")