"Then in other words, depending on the development of the war, new Masters may possibly emerge?"

The King of Heroes in front of him should not have such deep interest in something unrelated to his own desires.

Though he felt that Gilgamesh's question was to some degree somewhat abnormal, Kirei still continued to explain further.

"Indeed. But to be one of the candidates chosen by the Grail, is not something that can be casually decided. So during the search for new Masters, the Grail will still prioritize the consideration of those people, possible Masters, that had been previously chosen.

In particular, the Masters of the '3 families of the beginning' are even more special. Even having lost their Servant, as long as in that period of time exist other Servants who have not yet formed contracts, they can, under a circumstance of not losing Command Seals, continue to exercise their authority as a Master. It seems that several similar things have happened in the past."

"——"

In the eyes of Gilgamesh, who had been silently listening to his explanation, Kirei perceived an unsettling pressure, and could not help but stop.

"What is it? Continue explaining, Kirei."

"Anyway, this is also one of the reasons a Master who has lost his servant in the war will gain the protection of the Church. When there appear openings for other Masters, they will have a very great chance of once again obtaining 'leftover' Command Seals. Precisely because of this, the methods that participants of the Heaven's Feel use against enemy Masters are not to cause them to lose their combat effectiveness, but to directly kill them. This is also a measure to ensure that there will not be trouble from them in the future.

"Heh."

- Fate/Zero: Act 9, Part 3