neruzou, kochiya sanae, touhou, highres, 1girl, :|, ahoge, alternate costume, chair, closed mouth, collared shirt, dot nose, frog hair ornament, greyscale, hair ornament, hair tubes, hairband, holding, indoors, long hair, long sleeves, looking at object, monochrome, neckerchief, sailor collar, school uniform, serafuku, shirt, single hair tube, single sidelock, sitting, snake hair ornament, solo, table, upper body, wide sleeves