I imagine it to be a tearful reunion with "I missed you so much" from both and they'd try to figure out what to do from there... hopefully leave the place together, or even better - restart the time loop to change something to give themselves a second chance
Anything that explains the origins of the Abyss, the magical power Kat uses, the hints of Kat & Swann experiencing the time loop, and the relationship between Kat & Celine(maybe they're the same) would be nice. Pam could be there to help as a mentor-type of a side character
Vibe CheckVibe Check: Kat
I like how you handled Kat's perspective
