kobayashi yuji, copyright request, highres, 1girl, blurry, blush, book, bookshelf, breasts, brown eyes, brown hair, checkered background, depth of field, female focus, female masturbation, hairband, holding, holding book, indoors, knee up, long hair, looking at viewer, masturbation, masturbation through clothes, no shoes, open book, pantyhose, pink hairband, sitting, sitting in window, skirt, small breasts, socks, solo, window, windowsill