Unicorn has three outfits baked into this loha,

1girl will likely help in getting her to gen correctly but isn't required

you should neg horn as it likes to try and add a unicorn horn to her

I pruned tags for hair color, hair style, and eye color, but it will likely be required to use some hair style tags

base outfit tags:

white dress, detached sleeves, criss-cross halter, white thighhighs, hair ribbon

neg tags to prevent bleed:

(hair ornament:1.4), black scrunchie, china dress

schoolgirl outfit:

white cardigan, white pantyhose, hair ornament, black scrunchie, pleated skirt, pink neckerchief, school uniform

possible to need: low twintails

neg tags to prevent bleed:

hair ribbon

china dress outfit:

white china dress, bun cover, white thighhighs, wrist cuffs, black ribbon, cleavage cutout

neg tags to prevent bleed:

hair ribbon

it should be easy to put her into other clothes as I had a lot of images to work with