It was a lovely dream all the same until said contradiction came to my attention.
I know that the dream took large, LARGE inspiration from The Promised Neverland. A group of kids were being hunted, trying to escape, from a monster, and were living in an oppressive society of some sort. There was a small contradiction in that originally the monster hunting them wasn't part of said society and later in the dream monsters such as the one hunting them were common; there was a small contradiction in that originally the monster was hunting only one human with said human's death motivating the escape of the others, and then later it being the monster hunting them all with one human caught (in both instances, a surviving kid vowed revenge), but these?
These were dream logic errors that I didn't realize until just now when trying to type out the narrative and finding it less coherent than I remembered even given the glaring error. I think the setting stayed the same, though; it was a dream-labyrinth mall. Which is exactly what it sounds like; a mall, as shown through a dream, in such a way that navigating it was like navigating a labyrinth.
I believe that stayed consistent.
Later in the dream, there was a shift of perspective, however. We went from following the escaping kids to, after the ghost of their deceased comrade came back to warn them, following the ghost--ghosts in this dream world setting are restless spirits but are treated as a whole different class with almost equal power to the ruling class...because of their innate abilities to cause incredible harm if they weren't given that status.
They have common ghost powers; flight, intangibility, and have some unspecified further abilities, not to mention, can travel fast. Uniquely, there exists a way for ghosts to inhabit a tangible form, which travels with them when they go intangible, but these bodies are not something that come from the ghost themselves; they are manufactured. (Basically, said manufactured bodies are 'possessed', and once possessed, they travel with the ghost even when the ghost is using their ghostly powers.)
The ghost of the kid stole a body to possess that they weren't meant to have, and was able to warn the group, but had to leave them to not be exposed and played the part of a genuinely new ghost proven worthy of having that body, or something like that.
However, this focus on the ghost proved to be the dream's undoing, because it exposed the contradiction I couldn't reconcile. The ghost was a girl, and in at least one version, it was a girl killed...but in at least one version, the version that I believe came first, it was a guy who was killed. And realizing this made me endlessly try and loop back to that scene, to play it forth and figure out, "was it a guy who was killed, or a girl who was killed?" and I couldn't figure it out because I think it kept changing originally and this is what caused the dream to basically explode as I was catapulted awake in confusion and disappointment.
Because it was a good dream, darnit, even if it was filled to the brim with blatant continuity errors.
If the dream had kept going, I'd have explored the society via the ghost more, and then maybe looped back to the characters, with them meeting back up at some point. At least, that's my theory. But we'll never know because I stupidly realized the dream's flaws.