katsura kotonoha, school days, 00s, 1girl, black hair, black shirt, blazer, blush, bow, bowtie, brown eyes, buttons, collarbone, collared shirt, female focus, gradient background, grey eyes, holding, jacket, japanese text, knife, long hair, looking at viewer, open mouth, red bow, school uniform, shirt, sidelocks, simple background, smile, solo, swept bangs, text focus, upper body, very long hair, white shirt