I really like the story so far. While the gameplay is similar to turn-based card RPG, you can choose different target in a turn, which make it more interesting. The VA's British accent is a nice touch, but sometimes they felt emotionless like reading a narration. Indeed, MC and some other character supposedly have robot-like personality and there's hint they might develop more as the story progress. Nonetheless, you can use other language option too, which I found livelier. I like that they have non-human character too.
For gacha system, there's guaranteed system for 6* every 70 pulls and the dev give quite generous reward too, so you can get many free pulls. Even then, 5* character can also deal damage similar to 6*, so just build whoever you want while looking at team's ability composition. Quite F2P friendly. The art and music is 💯💯!!! I