weight 0.7~0.8 is best.
I created this LoRA as requested.

Please read the description.

outfit1
aasumi, long hair, single braid, hair bow, serafuku, sailor collar, neck ribbon, red ribbon, white shirt, long sleeves, red skirt, pleated skirt, white thighhighs

If you want her eyebrows to be thicker, add the thick eyebrows prompt.

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