LogFAQs > #973361806

Since I think the gacha mechanics are copied over from Genshin, yes the pity count should carry over. Just be aware that it isn't actually very easy to get a specific 4 star, even with rate-up. Every 10 pull you do you have to win a 50/50 to have the guaranteed 4 star pull be one of the rate-up characters (unless you lost the 50/50 on the last 10 pull), and then you have a 1 in 3 chance to actually get the 4 star you're pulling for with no pity mechanic.

Genshin has plenty of stories of people failing to pull the 4 star they want in large amounts of pulls. It's obviously still better than trying to get one of the 4 stars without rate-up, just potentially deceptive about how difficult it is.