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

Please read the description.

outfit1
aamika, ponytail, hair bow, collarbone, school uniform, striped, bowtie, collared shirt, white shirt, sleeves rolled up, wrist scrunchie, clothes around waist, plaid skirt, purple skirt


outfit2 (Recommended outfit)
aamika, twintails, hair bow, idol clothes, choker, vest, wrist cuffs,, midriff, shorts

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It works just as well with other outfits.

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