(Wrapping this up is so annoying. I'm completely stuck.)
That wall recorded some of the reasons behind the destruction of heaven and earth.
This person had not left behind his own name, but since he walked the path of blood, perhaps he could be called the Lord of Blood.
The Lord of Blood had wandered through chaos and encountered the Lord of Time—the "sword-wielding fellow" he mentioned. The other party held the Azure Sky Sword and was a powerful swordsman.
The two had met in chaos. As for why they clashed, Su Yu and the others did not know; the Lord of Blood had not recorded it.
But they knew the outcome.
The Lord of Blood had been effortlessly defeated by the other party, and even heaven and earth had been sliced into fragments.
The Lord of Time had not slain the Lord of Blood, but in that situation, the core of the Lord of Blood's heaven and earth had been grievously damaged by the Lord of Time. He simply could not survive; even if he did, he would have been crippled.
In the end, the Lord of Blood perished within this heaven and earth. Along with him, his world was utterly extinguished, and its Great Dao went dark.
"He died..."
Seeing this, Su Yu and the others felt complicated emotions. This person had actually died. These were merely some final lamentations he had left behind at the moment of his extinction.
He lamented being born at the wrong time, lamented that fellow's overwhelming strength, lamented that though heaven and earth had been opened, he had failed to become a universe of living beings.
There was not much hatred toward the Lord of Time in his words. There was only a sense that the other party had been too strong.