Shrunken women board

I found this scene on Giantess City, and trying to find out what manga it came from. The Discord servers got no luck either. So if anybody knows where this is from and where to find the full version of it, let me know.

I found a site that I'm assuming is where you got this scan from. I couldn't get much of anything because my security program lit up when I loaded it.
https://archive.wakarimasen.moe/d/thread/9830964/