All you need to do is extract the ZIP file and take the files and copy them into the /game folder.
Not the ZIP or the extracted folder, just the files go into the /game folder.
Where do I get those files? Because the one I found only contains 2 of the 3 files you mention, which also do not have the same name you say!
So it appears back in November I slipped back into a bad habit of referring to an old naming convention on the mod (that one in particular was LD), I will remove that line to avoid future confusion. Apologies for the that!
We have a number of different Denpa Mods depending on the Love in Space game being played, all of these we host on our forum to keep them together and easily accessible. These versions are also the ones that are updated first in the event of a new change as we have uploaded them rather than a platform or third party.
Please go to our forum here
and go into the relevant 'tech support' section for the game of interest where there will be a pinned post with a download link plus instructions. Don't worry so much about the number of files in each mod as they vary, instead ensure you're only putting the files in the download into your /game folder and not the extracted folder itself.