I've been playing this game everyday since it came out, and I can say for sure this is the only gacha that feels like I can commit to play for a long, long time, the story is great, no masterpiece but I feel that it can become somewhat amazing in the future, the game is very merciful for a gacha, you can be F2P the whole game, the free units the game give you are actually good, the characters feels unique in a certain way, and the worldbuilding in this is something else. Anyway, obviously the bad part is this is a Gacha, everything is chance and the item grind is hard, so if you can ignore this and actually like gacha games like me, you're in for a treat.