I like the art style of this game a lot. And the story is nice. (bi options are great, plus friends to lovers feel genuine) However, I find Ariel's personality to be regrettable. She blushes so much, and her obliviousness in the total lack of information is weird. I think if she were human this will be fine,
but she's an angel, with rank and work ethic. You can't exactly make her act like a high schooler on a field trip. That said, I understand working on games and the script is hard. But to sell angel as a group on the lack of progress and cluelessness, one shouldn't rely on really juvenile tropes, maybe find more specific cases surrounding angel culture to be referenced? As it stands Angels are like a bunch of buffoons, there are occasions where it can be cute, but too much makes players question how does heaven function for so long full of oblivious children. There should be a harshness to their innocence.
That said, I really think Kel route is pretty cool! poly + bi options ftw. Arial's nonchalance really sells the relationship, she genuine enjoys and care for another's company.