The Counter Force chooses the children of each era, and a certain traveler follows at their side. His flame-like eyes witness their heroism and their downfall, bear witness to their achievements, and lend a hand when the time is right.
Whether he wants to or not, he walks through the grand epic of history.
The children of each era call him "Humanity's Great Sage."
But he doesn't belong to this era. So when he leaves, everything that has happened up to that point will become part of the children of that era's story, at least to those who never experienced a Singularity.
He's like an invisible man. There's no trace of him anywhere in history, no sign of him and no record of his existence. But think about it carefully, and you'll realize he's everywhere in history. Without him, the entire history of humanity would fall apart, yet no one has ever known it.
That's the cruelty of history. That man gave everything for this world, only to be forgotten, like an insignificant speck of dust, without even a single cold line of record to his name.
What is recorded here is a part of his journey.
By the way, I'm terrible at writing blurbs, the author is an idiot, the prose is trash, the plot is stupid, and the characters are barely developed. But the author is improving! ...Probably.