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

Please read the description.

outfit1 (with capelet)
1girl, aasumire, short hair, grey hair, hair bow, black bow, hair ornament, hat, white headwear, fake animal ears, capelet, fur trim, white shirt, wrist cuffs, high-waist skirt, black thighhighs


outfit2 (without capelet)
1girl, aasumire, short hair, grey hair, hair bow, black bow, hair ornament, hat, white headwear, fake animal ears, sleeveless, white shirt, wrist cuffs, high-waist skirt, black thighhighs


outfit3
1girl, bbsumire, short hair, grey hair, multicolored hair, hairclip, earrings, choker, collarbone, white camisole, blue jacket, open clothes, long sleeves, black shorts, short shorts

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