Of course, Lu Yuan knowing these details did not mean the Heart Demon Thunder Emperor knew them too.
Strictly speaking,
Lu Yuan had not known at first, either.
He had Qing Yan Jing to thank for that.
If Qing Yan Jing had not brought these matters up, Lu Yuan would still have been in the dark.
Most likely, he would have had to wait until the Ancient Heavenly Palace reopened to learn it from the Heavenly Emperor. Or perhaps even the Heavenly Emperor had not known, or had only known part of it, because he had fallen far too early. At the very beginning of the war led by the Heavenly Evil God and his Extraterrestrial Evil God Race—or rather, at one of the pivotal points when the war erupted—the Extraterrestrial Evil God Race had struck at the Nine Emperors and all the Saint Grade Heavenly Sovereigns of the Myriad Heavens whose reputations and locations were known. That was why the Myriad Heavens had been caught completely off guard in the early stages of the war and lost vast swathes of territory.
The Floating Tu Ancient Clan, however, was different.
Judging from the current point in time,
the Floating Tu Ancestor should have successfully entered the Saint Grade Heavenly Sovereign Realm during this seclusion. But because he had only just broken through, the Extraterrestrial Evil God Race might have underestimated him and sent a few nobodies after him, only for him to kill them instead. Or perhaps they had not cared about him at all and, with manpower in short supply, had not wanted to waste precious Heavenly Devil Emperor-level combat power on him. In short, the Floating Tu Ancestor should have been a rising junior, the kind who had to respectfully address the Heavenly Emperor and the others as