That's about right.I use the V-080 version
I swear that I've tested this before and it worked. The only means I have left is to share my save data so you guys can unlock it(probably)The galleries in Chapter 6 are all gray and unviewable, and failure in the game cannot be unlocked
Save data address goes like this:
C:\Users\(username)\AppData\Local\FairyPrincess_v001