1girl, :/, arm rest, bags under eyes, black hair, blunt bangs, closed mouth, empty eyes, frown, grey background, grey eyes, grey hair, greyscale, hair over eyes, hair over shoulder, head on hand, head tilt, hunched over, japanese clothes, leaning forward, long hair, looking at viewer, looking up, messy hair, monochrome, neckerchief, sad, sailor collar, school uniform, serafuku, shirt, sidelocks, sitting, solo, table, upper body, upturned eyes, very long hair