Xiu Yuan left Teyvat, using his spatial ability to leap out of the world and leave Phanes's eggshell behind.
His eyes widened as he took in everything before him. He knew his suspicions had been correct.
From his First Life to the end of his Ninth Lifetime, he had spent over a thousand years in Teyvat.
So long that he had almost forgotten he was a transmigrator from "Earth."
He had even forgotten that all of this was just the content of a game.
When Xiu Yuan remembered, he realized that things were far from over.
"Genshin Impact" and "Honkai Impact 3rd" shared the same cosmology.
The Imaginary Tree and the Sea of Quanta, those two supreme entities, also existed in Genshin Impact.
Every trunk of the Imaginary Tree represented a world, a civilization.
Every leaf that grew on that trunk represented that world's past, present, and future.
In other words, each leaf was a parallel world.
In theory, as long as he found the branch belonging to "Teyvat," Xiu Yuan could travel freely between the various Genshin Impact worlds and even return to his previous eight lifetimes.
But the Imaginary Tree's vastness was far beyond what Xiu Yuan could comprehend. This approach was completely impractical, possible only in theory.
Although the Imaginary Tree could create countless parallel worlds, its nutrients could not be distributed appropriately to every one of them.
Sufficiently advanced civilizations naturally needed more nutrients to sustain them, while those too primitive to develop had to be eliminated.
And so, Honkai was born.
Humanity could not avoid Honkai. Sooner or later, it would descend upon every world, and only by surviving it could a world continue to develop.
If a world could not survive Honkai, the Imaginary Tree would discard its leaf, and the world would fall