I started playing this game a few days ago, and my impressions are mixed. The character art is nice, and the story seems decent enough. It's nice that you can obtain high-rarity characters, simply by ranking them up. That's really cool to see.

As for the negatives, the UI feels so ancient. It's not stream-lined at all, and it doesn't help that the game loads so slowly between everything (mostly when you first log in). It definitely feels "grindy", which I don't appreciate. It's fine now, since we have so much stamina from early rank-up's, but I know it's only going to get more difficult later. Flower Knight Girl, another Nutaku game I play, never felt like that to me, and the UI for that game (as well as general loading of everything) is just so much better. Considering I play gatcha games on my phone, I'm not entirely sure I'll have the time to spend with Brave Girl Raven, especially if the events require me to sit there for an extended time grinding the same map over and over.