I have gems, but...

I currently have 213,000 gems... But, you know, it's tough to see 120,000 disappear for the limited characters I want... I still don't have that many 4-stars overall... Maybe the Blue Fes is the way to go? Ah, Killer Airi, Wolf Miku, Wedding Minori, Rekka Kohane, Frieren Kanade, Valentine Kohane, 3rd Anniversary Minori, Kohane, Kanade, Also, I really want those virtual limited skill virtual shin ones too~