2 new 5-stars on the same day...rip all my saved coins. I'm sad I didn't stock manyus for this new girl, I just figured the event girls were always given out at the end.
I don't think you'll have money problems. If your farming the last map you can get like 20k+ coins and 0 manyu so your not even spending any money.
Edit: Also like 2k gacha seeds so that's even more money.