Unlimited Blade Works Reappears (2nd update)

Yao Guang—Chaldea Headquarters. Irisviel looked utterly confused. "Kiritsugu, why did this happen? In the Light Screen footage of the Fourth Holy Grail War, Old Man Acht didn't blame 'us' for failing to obtain the Holy Grail!"

"Besides, the Holy Grail was corrupted. The Einzbern Family shouldn't have been interested in it, so why did things turn into you and the Einzbern Family becoming sworn enemies?"

Emiya Kiritsugu considered it briefly. "I think it should be because of you, Iri."

Irisviel said, "I know it must have something to do with me, but shouldn't it have been enough to explain things clearly? Are you saying that the Einzbern Family in the second timeline wanted even a corrupted Holy Grail?"

Emiya Kiritsugu shook his head. "It probably wasn't about whether the Holy Grail was corrupted. Do you remember? In the Light Screen footage of the Fourth Holy Grail War, 'you' were possessed by Justeaze, an ancestor of the Einzbern Family, and obtained the Einzbern Family's ultimate secret magecraft Mystic Code—the Dress of Heaven."

"And when 'we' returned to the Einzbern Family and faced Acht, the Light Screen showed that old man noticing something unusual about 'you,' Iri. He even saw Justeaze's phantom."

Hearing that, Irisviel recalled the corresponding scene, and realization immediately dawned on her. "That did happen... So that was it. That was why Old Man Acht chose to accept everything back then..."

The lady of the house was a clever woman as well. Naturally, she had not understood when she had not considered the possibility, but once Emiya Kiritsugu pointed it out, she figured it out.

In an instant, Irisviel's impression of Acht in the Light Screen footage plummeted. She had thought he was an understanding and reasonable old gentleman, only to find that he was an exceedingly pragmatic and