weight 0.7 is best.
I created this LoRA as requested.

Please read the description.

outfit1
1girl, solo, short hair, white hair, floating hair, ahoge, hair between eyes, colored eyelashes, aqua eyes, high collar, black jacket, hooded jacket, zipper pull tab, long sleeves, sleeves past wrists, bare legs


outfit2
1girl, solo, short hair, white hair, floating hair, ahoge, hair between eyes, colored eyelashes, aqua eyes, serafuku, sailor collar, red neckerchief, shirt, short sleeves, midriff, pleated skirt, blue skirt


outfit3
1girl, solo, short hair, white hair, hair bun, hair between eyes, colored eyelashes, aqua eyes, cleavage, sarashi, bandages, black jacket, open clothes, long sleeves, midriff, belt, black pants

I uploaded a sample image of the outfit as a post.