/jp/ - Otaku Culture

Huh, so they also made a chart showing how many flower stones you need to promote a character.

Looks like 5* girls will be reasonably easy to advance, especially if 40% discounts occur more often, they decide to gift promotion stones once in a while or you're willing to roll for dupes in their highlight gacha, since you'll get 682 flower stones in about 4-5 months. But the initial estimate of "two rainbows a year" seems to be correct in general, since a 2* will take 6-7 months' worth of stones even with 20-stone discount rolls, and promotion is best reserved for your absolute favorites rather than the first character you fancy.