Not what I expected to happen, and I really hope it's not some pre-death dream they are all having while being slowly dissolved.
Thank you for the chapter!
I doubt it just based on Furuka’s arm. She clearly lost it, and it’s growing back, but not fully, yet. Too convenient to blindly accept it as reality, but not convenient enough for a dream.
If we go with the assumption that Kon was part of the monster all along, maybe they created her to seek companionship from the islanders. Maybe their consciousnesses are connected, but Kon is her own independent personality. Then Furuka enters the picture. Both Kon and the monster fall for her, so the monster reabsorbs Kon in order to lure Furuka to them so they can keep her for themselves. But she brought others with her, and dissolving her arm was probably an accident trying to seperate her from the others and expel the intruders. I think it made a space within its own body for her, trying to make her as comfortable as possible while also restoring her body.
What happens next is complicated. It didn’t seem like she had any attachments to the outside world but can she continue to live like this knowing where she is and who Kon is? How independent is Kon, and does she and the monster want different things for, and from, Furuka? Then, there’s auntie and how she reacts to what she saw happen to Furuka. What’s her next course of action? Will she walk away, try to get Furuka back, or seek revenge?