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

Please read the description.

outfit1 (with jacket)
aamisaki, twin braids, multicolored hair, brown eyes, red-framed eyewear, red collar, serafuku, sailor collar, multicolored bow, sailor shirt, white shirt, (off shoulder:1.2), black jacket, pleated skirt, black skirt, black thighhighs


outfit1-1 (without jacket)
aamisaki, twin braids, multicolored hair, brown eyes, red-framed eyewear, red collar, serafuku, sailor collar, multicolored bow, sailor shirt, white shirt, short sleeves, pleated skirt, black skirt, black thighhighs

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

Due to the small number of images in the dataset, the character's clothing or pose may not be fully realized.