Rule 34 Dev - 1girl belt black_belt blue_hair book closed_eyes fireplace hair_between_eyes highres hololive hoshimachi_suisei hoshimachi_suisei_(school_uniform) long_hair nattoushouyu3 off_shoulder open_mouth ribbed_sweater school_uniform serafuku short_sleeves sitting sleeping sleeping_upright sweater virtual_youtuber|15154911252