Ever since I posted previous version, I've learned a lot of thing about VAM, DAZ, and Blender.
Now I feel I could make some more stuff. (also now I see preparing skinned CUA is too hard for me now)
therefore, I made this for starter!
this looks no difference to previous one, but no longer exist improper bound vertices and now facial movement limitedly affect the mask.
I'm now making new masks.
one of these is whole new design.
and the other is few new states of this. (as previously requested by WantSleepy)