My theory about Enjous true identity because our fav NPC finally got some more lore
At the end of the new world quest ("The Last Survivor of Tenochtzitoc") we go into the Mare Jivari together with Enjou and Citlali and (at least temporarily) defeat the Bakunawa.
At the end we question Enjou about who he really is and he doesn't really give us a definite answer to it, however he tells us that he has witnessed (or at least knows of) a lot of historical events in Teyvat, such as what happened in Remuria, Enkanomiya, etc., however, he himself does not remember where his homeland is or if he even has one, saying that while he serves the Abyss Order, they are not his home, and decides to go and look for his homeland within the Mare Jivari and disappears.
Before he leaves, he gifts us a flower, and says: "This is the flower that blooms in flames. Until the day that the fires turn me into ashes, you shall see the glowing embers of this flower shining through the dark smoke.", which is the exact same thing the "Lava walker", also called "the Sage who wandered the Mare Jivari". The flower Enjou gives us also turns into an artifact piece of the Lava walker Set in the inventory.
The quest also rewards you with a new Avatar, on which we can see Enjou and the flower he gave us. The Avatar is called "The scholar who crossed the Mare Jivari".
And while "Sage" and "Scholar" technically don't mean the exact same thing, they are often used to describe the same person regardless.
The set also mentions that the "Lava walker" wasn't hurt by the flames of the Mare Jivari around him, which would also fit for Enjou, since he is a pyro Abyss lector (I also find it interesting how we did not see him in his lector form once during the entire quest).
So was the "Sage" (aka the "Lava walker") from the Lava walker Set description was Enjou all along? And will we ever get an Update on wether Enjou has found his homeland or will we never get to see him again (although that would be a little sad given that he promised to tell us his real name if we ever see each other again)?