hanainu (orange bullet), 1girl, anal, bar censor, bdsm, black eyes, black hair, bondage, book, bound, bound wrists, calligraphy brush, censored, chain, computer, computer keyboard, female focus, mechanical pencil, multiple insertions, object insertion, paintbrush, panties, panties around leg, panty pull, pencil, school uniform, serafuku, socks, solo, top-down bottom-up, underwear, vaginal, vaginal object insertion, white panties