Review Detail of Plague in Cthulhu Gonfalon

Why is this embarassing story brought up again, the translation is subpar, the mc thought is really confusing, the author is certainly never do even a little it about jellyfish to make a good story, if it's a otherworld jellyfish the mc should know the ordinary jellyfish and how different it is, but the author make it like the jellyfish is the same with one in earth. Make me wonder if there is no one in china with knowledge to comment about this absurtness or the jellyfish in china is different than on other part of the world.