Sooo, over the past few days, I’ve been thinking that I should really catch up with all those book clubs, right. So of course I read 乙女ゲーム[…] volume 6 instead.
Now that I’ve read it, I feel like volume 5 makes a bit more sense.
It was a good way to make a transition, since we have now reached a new game! FORTUNE LOVE II! Set one year later at the ministry of magic. New characters! More routes! The evil 悪役令嬢 is back from exile to get revenge of our lovely protagonist マリア and she even got black magic powers! Only death will stop her. And boi will she die.
Except of course none of this really happened since カタリナ just caught all the characters from the previous game like they are pokemons. Still, her visions (?) of the second game and the correlation between scripted events and real (?) life made her fear that, regardless, she may still have only 破滅 flags waiting for her.
This volume focuses on introducing said new characters and send her new team on their first mission [redacted, because now that people actually read the book, I would feel bad spoiling it for them even by accident].
My ebook edition also had an extra story at the end which felt entirely unnecessary, but anyway 
Now, my main beef with the story so far is that those visions feel very weird. I understand that, plotwise, she has to know in advance what the game will be about (otherwise she wouldn’t know and thus not worry about 破滅 flags). However, those scenes are very different than any sort of magic we have seen so far. Arguably, she had something similar with ソフィア the first time that she got attacked by black magic, but it’s still different. Here, she is watching through the eyes of her old friend (who got reincarnated as ソフィア as far as we know). Is it from ソフィア’s untapped memories? Actually that could work I guess. It’s still extremely convenient. Also, why did that not happen before? Oh well.
I still had a good time overall 
Edit: volume 7 
is back to calling the game FORTUNE LOVER. I wonder why the R disappeared in volume 6.