Both Phainon and Khaslana will appear in 3.6 story.
The name “Demiurge” has changed to others. It has little relationship with Phainon now.

Demiurge is a name/code (like 哀琦斐, 琦录). They may appear in another part if they weren’t used as before. Demiurge might take on a completely different role in the story.