Sadly, seems that I was mistaken. With the help of @superelmo (technically, he did all the work) i found out that this version, in fact, doesn't have all of the three games in one. This is only the second game and on top of all, only All-Ages. So what you see on Steam at 0.95€ it's only one game and not all three of them. I apologize for the false information (but not that much because I warned all of you that I didn't know if were all or just one).
So again, this version here it's only "Fortissimo EXS//Akkord:Nachsten Phase" but the All-Ages version and not the +18 one. Hoping that one day SakuraGame will release an eventual patch for restoring the content.
EDIT: added to the OP the torrent for the working version, btw, always thanks to @superelmo
