This feels like a good version of Milk Closet's premise. Young girls with the ability to teleport to an alien world (worlds in Milk Closet), with lots of monsters and body horror. The name's even basically the same.
Just this one has a clearer plot, recognizable main characters, less "symbolism" that doesn't actually mean anything, and less "themes" that are just tacked on without being properly worked into the plot. (Seriously, what was with the Santa hats in Milk Closet?)
Milk Closet does have creepier designs and better horror though, I'll give it that.
And this manga hasn't ended yet as I'm posting this, so it could still mess up, but HOPEFULLY the fourth volume keeps the level of quality of the first three. (I doubt there'll be a fifth volume, we seem to be wrapping things up.) Milk Closet started off pretty great, then was alright for a bit, but then turned into a trainwreck by the end.