The previous might make you think that Aster's plan of putting on the front of being a useless silk pants surrounded by capable beauties, is useless since their faces are covered, but that's absolutely not the case.
To begin with, while their bodies, skin, clothes and even hair included are being covered in blue light, they all keep their shape perfectly visible and the same applies to the "vibe" they give off externally, it was made that way to maintain "individuality" in a place where identities are hidden.
In other words, if one is violent or gentle, one would still feel like that in this place, so those four who are naturally beautiful, elegant, wild, playful, gentle and the like, still give that impression, thus even without their faces not being in the open, those who look at them can tell that they are no ordinary girls by any means.
