Story, music, lore, VA, artworks you name it all.. Even though the main plot looks generic at first, the execution is surprisingly good. The gameplay is kinda tricky, but once you get the hang of it, it will feel good. Pricing is decent, maybe it feels a bit expensive for some, at least the gacha rate is one of the most generous I've ever played so far.. It's 100% F2P-able. Their monthly pass is worth the price too. Overall a good game deserves full stars.