tbh I got annoyed by gacha-based games as a whole. but if I have to play it then it needs to have decent rates. right when most of us began we were complaining how much worse the Shironeko gacha was compared to the PAD gacha(and nowadays there's even fairer gachas in other games). but when Colopl then also started to get super stingy with stones and on top make it so your characters got all but obsolete after maybe a month(as opposed to slowly phasing them out like they used to do in the beginning) that pretty much put the nail on the coffin for me. I know the whole point of gacha games is to make you constantly roll more, but in PAD i never had the feeling that I absolutely had to roll that new character or not be able to have as much fun anymore, whereas in Shironeko I got that after a while. in the end most of my time spent in Shironeko was to farm more stones to roll the gacha more.