This is interesting news! Thanks for letting us know. ^^
The link you provided is actually for the Japanese version, which is getting an update so that it can work on computers running Windows 10. (It honestly works right now, but they're doing an update so they're trying to push it again).
Unfortunately, NitroplusCHiRAL doesn't actually sell their games in English.
But, either way, I don't know if the current English patch will work with this version of the game or not, as we don't know it's file structure.
If the game is running the exact same engine, it may be possible. ^^ You can always support the developer by buying a copy of the game to encourage them to make more.
Even if it doesn't work, you can still find ways of making the existing version work in English.