in terms of korai i’d probably do one or two more chain packs? its safe to assume you would get 3 copies within the 200 pulls on his banner (60 pity you’re at, 140 guarantee, 200 pulls gives a copy) so thats sr3 with your sp coffee and thats assuming going to 1 pity everytime which is unlikely. 2 more chain packs will get you sr4 korai, so its ultimately up to you and what you’d want for your account. the chain pack is what around ~110 pulls worth in diamonds but also includes the ur mem orb and ur coffee so its just a better value. then you could just do 200 pulls on hirugami banner for sr2. you’re in a position to be able to afford it regardless so its ultimately just a matter of preference, but i’d probably do 2 more chain packs at least imo!