They're such a mess in the game... Skeletons / proportions, eye positioning, skirt clipping, lighting are all messed up for most of these models, and some Neptunia models have no textures / animations (T-posing). The hair is also stiff and weird-looking for most of them.
I cringe with my whole body from just looking at them (especially the ones I know and like, like the Vocaloids and Touhou characters). Too bad they're so ugly.

how this equip in game?

HECK YEAR