The Threnodian said to embody humanity’s fear of the unknown and of voidance; it has come from outer space, making it the first known extraterrestrial Threnodian. Since Lahai-Roi’s inception, It was sealed beyond the Stridergate by the Exostrider’s Greatsword.
Traces of Aleph-1’s power is responsible for the Waveworn Phenomena known as Void Storms and by extension the Voidworms. Related terms:
According to the Royan Trine Myth, it is said that the Exostrider will reawaken and, alongside humanity, strike at Aleph-1 in an attempt to define a new Epoch.
Aemeath likens Its existence to a black hole — complete devouring of existence and matter for everything that enters it. This is reminiscent of actual black holes, where nothing can escape the pull of a black hole; not even information.
Aemeath: “There's a theory in Lahai-Roi: Threnodian Aleph-1, the Devourer of Existence, is the embodiment of voidance. The dissolution of all things. Its true form is like... a black hole. And that theory is correct. I verified it myself. So far, I'm the only one who's reached it. Because I'm already dead, and no living soul could withstand a place like that.”
— Aemeath, Act 3, Chapter Act 3: The Star that Voyages Far
As of now, there’s no known way to directly counter the entity other than the Exostrider. However, there are technological advances that allow people to resist Void Storms to a degree.