The Winter Saintess pondered for a moment.
"It is possible to heal your Master and restore him to his original condition, but doing so would completely exhaust the Greater Holy Grail's mana. Your wish would then be impossible to grant."
Shirou froze.
What did this have to do with Sieg?
"What do you mean? How could the Greater Holy Grail have so little mana? Or does restoring someone's health require an enormous amount of mana?"
"Neither. There is so little mana because nearly all of it has been used to materialize a human soul."
He instinctively looked at Sieg and saw that Sieg's hand had already turned black.
—It was even covered in dragon scales.
"Has he undergone Dragonification?" Shirou muttered.
The heart Siegfried had given him was eroding Sieg. The more he used its power, the faster the transformation progressed.
Shirou raked a hand through his hair.
He should have realized this sooner.
When Sieg had fought Amakusa Shirou with everything he had, he naturally had to activate the Dragon Heart. Otherwise, he would have lost. He would have died.
"Then how much mana would it take to restore the health of all the homunculi, as well as a girl named Fiore?"
Shirou bit his lip as he asked.
"Nearly all of it. The remaining mana might be enough to grant three more Command Spells."
The Winter Saintess gave an answer that was nearly despairing.
"Assassin, is the mana from three Command Spells enough for you to destroy the Greater Holy Grail?" Sieg suddenly asked.
Shirou instinctively calculated.
It should be enough to project Excalibur—of course, a weakened version.
"It's enough." Shirou looked at Sieg in confusion. "What are you planning to do?"
Sieg said, "Then I make this wish. Restore the health of all the homunculi and Miss