The images won't load for me, for some reason, but regardless, KENZEN* is like a running joke for the dev...so I'm initially inclined to believe that the game may just be a joke as well.
Besides, they're buckling down on the Earth Gaiden RPG, (the devblog for which has its own KENZEN* jokes) having recently been working on the Day 2 chapter.
*KENZEN, in Japanese, means 'healthy' or 'wholesome'. The author here uses it with a slightly ironic, perverted meaning (generally by describing their female characters as being KENZEN). Though I don't know for certain,
I must presume that KENZEN is written in English (and all-caps at that) for further ironic value.
If I'm wrong, we'll all rejoice, but I just want to caution that this currently seems unlikely.