>>712402302The short version is: It has better combat (if you prefer action combat or ATB combat that is), better graphics and better, more polished gameplay and mechanics...however, the story is very different compared to the first one (it's kind of like a sekai game actually), the performance is inferior in the sense that it runs at 30fps and not 60fps (at least on consoles), it has less battle music and it has less suggestive content or fan service compared to the first game (it doesn't even have ''Partial Nudity'' as one of its content descriptors unlike the first game)...also, Yuzu and Lime aren't playable characters.
I consider it a better game but...it's complicated, some people prefer the first game.