1girl, ahoge, arm up, blush, bracelet, cardigan, cardigan around waist, clothes around waist, collarbone, earrings, jewelry, light purple hair, light smile, looking at viewer, loose necktie, necktie, open collar, pen in pocket, plaid, plaid skirt, pleated skirt, school uniform, shirt, short hair, skirt, sleeves rolled up, solo, transparent curtains, white shirt, window