Suchen:

Yes.
The text is also French. And I didn't see any way to switch the language to English.

After searching around the Internet a bit, I found a forum thread by the translator which confirms that...

Hello.
I downloaded what I thought was the English demo for Aedemphia from your DropBox account, the one labeled "Aedemphia 8.5 engl" but when I tried it the game was entirely in French.
Unless...