Blackstar: Theater Starless .enc files [Unity]

[algernon]

Hey-ho! So I've been trying to open some image files of this japanese mobile game called Blackstar: Theater Starless in Asset Studio, which isn't a problem for any files included immediately after downloading, but for the assets that download later on during the game (i've noticed they all end in .enc), the studio won't pick them up. My guess is that they're encrypted in some way, but I'm nowhere near tech-savvy and I don't know how to get past it. I think it was made with Unity, if that's any help. I have some sample files here https://drive.google.com/drive/folders/1N6x6oK0qfj0DbzCUKUCyuGx-4Fc-1Fva?usp=sharing, so if anyone could offer some tiny bit of info about the files or what I'd need to do to be able to open them, that'd be a great help! Thanks in advance.