>>538114543
"no"
but she has appeared in 3 moments so far
>wordless (mentioned)
>wisdom spring
>unbreakable sphere

Both wordless and unbreakable sphere (the jien part) have one thing in common and that is the relationship between raptures and nikkes, and how you can "combine" their parts.
As a spoiler
Yuni is a experiment of Jien to test the combination between Nikkes and Rapture parts. That's why the new Yuni is called Chimera
Mihara is the latest experiment of Jien to test the combination between Nikkes and Rapture cores. That's why she's an Overspec. Because she also has a rapture core inside here.
In unbreakable Sphere it was revealed that Nikkes can get stronger by "consuming" rapture's core dust. Something that you do in gameplay btw.

As for wisdom spring...
I have the feeling it's going to get added to the Archive soon so you can experience it by yourself. It's one of the best events in the game
https://www.youtube.com/watch?v=cn_ugJ101-M

if there's an alpha
there's an omega...

>>718099265
I don't think it's Satan bro...

>>534653305
Nayuta
She's related to D.E.E.P or at the very least she knows a fucking lot about her (it?) and the "group". We're going to get a few lore reveals right as Neon enters the P sector Elevator (and probably meets Sixo there)

I feel like the next two chapters + the event are going to be the biggest lore drops so far in the 3 years of the game. We started this year really heavy with FWR and the DEEP reveal, and immediately the next event we got was Wisdom Spring. Both heavily related to DEEP