Hazawa Tsugumi from BanG Dream.
It is 100 official pictures and autotags.
Example prompt for casual Tsugumi:

hazawatsugumi, 1girl, solo, brown hair, brown eyes, dress, pantyhose, short hair, black pantyhose, plaid, long sleeves, cardigan, collarbone, cslsk

School uniform Tsugumi:

hazawatsugumi, 1girl, solo, skirt, brown hair, necktie, school uniform, smile, brown eyes, jacket, short hair, pleated skirt, plaid, plaid skirt, blazer, grey jacket, long sleeves, shirt, striped necktie, bangs, haneoka school uniform