If Lu Yin had heard Ancestor Chen say this when he was learning about Sequence Rules, he would never have believed him. Back then, as far as Lu Yin knew, Ancestor Chen was one of the Nine Mountains Eight Seas and might not even have been a Sequence Rule expert. The Only True God, who had Crossed Tribulation, was beyond anything Lu Yin could imagine.
But as time passed, Lu Yin's understanding of Ancestor Chen had been overturned. Ku Zu had managed to fight his way into the Eternals' territory and survive. Why couldn't Ancestor Chen have done the same?
The Nine Mountains Eight Seas of that era had merely been a title. It meant they had inherited the Mountain and Sea Battle Techniques, and might also have been a term passed down from the Heaven Sect Era. In reality, their strength could never have been limited by such a title.
At the very least, Ku Zu hadn't been, and neither had Ancestor Tianyi. Ancestor Chen must have been the same. He had been widely recognized as the strongest fighter of that era.
Even Ancestor Chen himself had said he was good at fighting.
The title of Nine Mountains Eight Seas had limited not only Ancestor Chen and the others, but also how everyone else perceived them.
If the Nine Mountains Eight Seas of the Heaven Sect Era had encountered Ancestor Chen and his peers and assumed that they, too, were merely the Nine Mountains Eight Seas, they would have suffered a heavy loss.
Big Sister used her Sequence Rule. "Come on, Little Seven. Use Parallel Time again."
Lu Yin shook his head. "There's no need. Parallel Time isn't easy to use in this situation. I've tried."
Big Sister's lips curved into a smile. "Good. Remember, this technique isn't invincible.