Hello!
I'm pretty new to naninovel and unity and have difficulty understanding the unlock system and CG gallery and how to use them properly. I tried going step-by-step according to the documentation, but I can't understand many things and it doesn't seem to work. Is there a tutorial video I can use (like the one for the custom UI with the calendar)?
Thanks! :D

There's no video tutorial besides what's shown on the documentation. My recommendation is to join the support discord so you can post screenshots of the issues you're facing.