This is Cecile from the webtoon Unordinary. Use the model NAI-Illustrious for best results. I tagged and trained properly so tags should actually toggle. Don't pick them all, only the ones you want.

Cecile, white shirt, shirt tucked in, green bowtie, green hair, dark green skirt, brown thighhighs, black thighhighs, green thighhighs, long sleeves, short sleeves, cleavage cutout, cleavage, green jacket, green bag, green bra, glowing eyes, magenta eyes, loafers