1girl, ahoge, ass, azur_lane, black_hair, black_skirt, closed_mouth, day, desk, envelope, feet_up, from_side, full_body, hair_ribbon, holding, holding_envelope, indoors, jyu-so, long_hair, long_sleeves, looking_at_viewer, looking_to_the_side, low_twintails, lying, miniskirt, official_alternate_costume, on_desk, on_stomach, pantyhose, pleated_skirt, red_eyes, red_ribbon, ribbon, school_uniform, shirt, skirt, smile, solo, sunlight, taihou_(azur_lane), taihou_(sweet_time_after_school)_(azur_lane), the_pose, tress_ribbon, twintails, white_shirt, window