The game (despite being in early stages) already features some branching choices, either direct or indirect ones. I don't have the game open right now to check, but considering the point where you are right now, I think it's due to the fact you had (or hadn't) 20 magic. There's a different outcome (and CGs) when using the magic circle depending on your magic stat. Locked CGs in your gallery are a good indicator that there's a different choice you haven't seen yet.
On R8, I made the quickslot buttons almost twice as big. Even with my phone cover getting a little in the way on the lower part of the screen, I still managed to tap on them. The other buttons such as the stat screen are smaller, but I still managed to raise the stats I wanted without ever misclicking them.
