Eight - Pragmata

Diana's younger sister, I still don't understand why her appearance can't be unlocked for Diana to use. I know that Diana is the protagonist and that's why they focused on making Loras out of her, but they forgot Eight, although as they say, in appearance she is a Diana but a little older,In the game he appears with white hair,They can replace it with blonde hair.Something that I couldn't achieve is that his legs look robotic, I couldn't make them look more android, the prompt robot joint made them look very mechanical