The Sage of Six Paths was quite sincere.
He had even specifically arranged for Hashirama Senju to return to the world of the living and apologize.
In the Sage of Six Paths' view, Shirou Emiya's status and character were worthy of being treated seriously.
Shirou Emiya's actions had been meant to ask him to intervene for Hashirama Senju's life, yet he had no choice but to refuse for the safety of the Shinobi World. That was why the Sage of Six Paths had wanted to apologize.
"The Sage of Six Paths told me..."
"There truly is a crisis in this world more terrifying than Madara."
Hashirama Senju believed the Sage of Six Paths' words. He did not even care that he had not been saved. "It's just that the Sage of Six Paths cannot descend into the world of the living. To apologize to Lord Shirou, he acted so that I could remain here for a brief while..."
"In other words..."
"The Sage of Six Paths really exists..."
"And to him, we truly are insignificant..."
Tobirama Senju looked at his vigorous elder brother, then at Shirou Emiya holding Little Tsunade. His expression turned ugly once more. "If not for Lord Shirou, perhaps even learning of his existence would have been beyond our reach..."
This matter...
Made Tobirama Senju especially uneasy.
Although Tobirama Senju had already believed that Shirou Emiya would not lie about this matter, his brother's resurrection had even brought news of the Sage of Six Paths...
When it truly happened before his eyes, Tobirama Senju was still deeply shaken. Gods really did still exist in this world...
However...
That god could not descend into the world of the living.
Even that god was not omnipotent.
And what troubled Tobirama Senju even more was that the Shinobi World actually