He knew that the Kuruokas had been attempting to summon Shi Huangdi, but he could not see the point of summoning such a Heroic Spirit, who must excel in devising tactics and stratagems, as Berserker. If Shi Huangdi had manifested as Berserker due to some error, it was possible that the Kuruokas were under the thumb of the mad Servant. All of that, however, was no more than Faldeus’ speculation.

Fate/Strange Fake: Volume 3, Chapter 7 ("Day 1, Afternoon")