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

Please read the description.

outfit1
aashouko, long hair, breasts, school uniform, striped bowtie, red bowtie, blazer, blue jacket, long sleeves, pleated skirt, striped skirt, red skirt, black pantyhose

outfit2
aashouko, long hair, breasts, school uniform, striped bowtie, red bowtie, collared shirt, white shirt, short sleeves, pleated skirt, striped skirt, red skirt

outfit3
aashouko, long hair, ponytail, breasts, gym uniform, gym shirt, white shirt, short sleeves, red buruma

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