also what version is being translated here ?
read the title "[Web Novel] [English] Tsuki ga Michibiku Isekai Douchuu". Unless it is not Japanese it is generally the first thing in the title.
What are the differences between web and light novel?
As with most LN vs WN, generally, it has slight differences in the story, often a more compact story that tells more in the same time, more fleshed out world, sometimes new characters. As the LN has not been translated though, can't tell you the specific differences.