You don't really need to add anything to your prompt other than this word "nemesis" and it will work, but if you really want this...

Weight: 0.7

Trigger words:

Appearance:

nemesis, long hair, blue eyes, black hair, purple hair, hair between eyes, hairband, small breasts

Outfit:

thighhighs, long sleeves, dress, frills, purple dress, cleavage cutout, garter straps