is LD shop safe? ( 30% discount on the bundle i want)

so i have iuno s0r1 , Ciaccona s0r0 , Shorekeeper , Verina , Encore and string master and want to get galbrena and her sig , lupa , zani and her sig , Qiuyuan , Cartethyia (s2) and her sig , Phrolova and maybe her sig and i think its impossible as a f2p (if its possible tell me please) .

I was watching a Saintontas YouTube video, and he promoted LD Shop. I was wondering if it's safe, since I don’t think he would accept a sponsor from someone that could harm his viewers (i.e., a non-legitimate shop), because it would affect his reputation in the community. I’m skeptical because they ask for your account email and password to process the purchase.