i tried the best i can and it give good result at least in my testing
for her uniform use weight 0.8-1
with prompts : 1girl, solo, white hair, black hair, multicolored hair, x-shaped pupils, black eyes, arle_suit, .
to change her clothes use weight 0.8
with prompts : 1girl, solo, white hair, black hair, multicolored hair, x-shaped pupils, black eyes,