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

Please read the description.

outfit1
aaikuyo, long hair, one side up, school uniform, sailor collar, red bowtie, (brown shirt:1.2), buttons, long sleeves, pleated skirt, black skirt


outfit1-1
aaikuyo, long hair, one side up, school uniform, sailor collar, red bowtie, brown cardigan, long sleeves, pleated skirt, black skirt


outfit2
aaikuyo, long hair, one side up, maid headdress, maid, frills, black dress, short sleeves, puffy sleeves, wrist cuffs, maid apron, white apron, white thighhighs


outfit3
aaikuyo, long hair, one side up, t-shirt, black shirt, clothes writing, short sleeves, white skirt

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