Originally Posted by
katsalia
I sincerely doubt you haven't spent any money with that progress and dust you have. I've literally played the game every day since it came out and I'm still missing 11+ mementos for ranks ups. I even did 6 promotional gacha draws just now that I saved from logins, and only 1 memento appeared in all of them.
Considering every other player in this game complains that the drops are too rare, you're either trolling or have a bad perspective on how "easy" it is to get them.