When defeated Heroic Spirit Servants fell, their souls first returned to the Lesser Grail. Yoru Machi did not know what had happened during the previous Third Holy Grail War.
But if Avenger Black Saber were defeated now, her returning soul would undoubtedly affect Illya, the Lesser Grail.
Illya's continued unconsciousness was not solely because she had been devastated by Heracles's departure. As the Lesser Grail, the side effects had already begun to manifest in her.
During tonight's battle, the successive departures of Archer Emiya, Heracles, and Sasaki Kojirou had caused Illya's condition to worsen dramatically in an instant.
Even as they spoke, Illya, who was already lying in Irisviel's arms, had grown several shades paler.
The reason for this was obvious: another Heroic Spirit Servant had been eliminated.
Other than the Heroic Spirit Servants who had appeared here tonight, only Saber and Lancer remained. Considering that Saber was the Type-Moon World's favored daughter, Yoru Machi could almost certainly conclude that the one who had been eliminated was the Hound of Culann, Cú Chulainn.
Besides the eliminated Heroic Spirit Servants, Kiritsugu Emiya was also close to kicking the bucket. While fighting Kirei Kotomine, Black Saber had casually pierced his lung as she prepared to withdraw.
It was worth mentioning that both Medea and Medusa had been capable of saving Kiritsugu Emiya at the time, yet neither had made a move.
Medusa was focused on Sakura, who had already been injured. Compared to an irrelevant stranger, protecting Sakura's safety was what truly mattered most to her.
As for Medea, given the grudges from the Fourth Holy Grail War, the fact that she had not personally killed Kiritsugu Emiya was already a favor to Irisviel. Asking her to save him was simply wishful thinking.
At the moment Kiritsugu Emiya lay on the verge