As far as I can tell, the don't expire. They're once per account.There is no end date on the news post either.◆SSR guaranteed Magic Jewels Step Up Gacha
Introducing a step-up gacha that can be drawn with magic jewels!
In Step 3, guarantees a SSR Kamihime release Weapon or the SSR Eidolon!
【Availability】
Jul 30th, 20:00 ~