Gameplay is turn-based. You unlock auto mode after Chapter 2. It's similar to an idle game where they fight on their own and you take afk rewards when you come back, so the gameplay is not new. The story follows the anime and includes some screenshots.
The community is dominated by Chinese players. It's to be expected considering the app is Chinese. You won't see anyone speaking English in the chat.
Gacha is kinda meh. Instead of all "full" characters, the premium currency gacha gives out items and character fragments too. I guess that's a negative for me.
Tbh, I'm not sure I'll last long in this game