3girls, ahoge, ass, black_ribbon, blue_eyes, blurry, blurry_background, blush, desk, hair_ornament, hair_ribbon, hairclip, hand_on_own_ass, indoors, kneehighs, long_hair, looking_back, multiple_girls, musical_note, musical_note_hair_ornament, nagai_noa_(sironora), necktie, open_mouth, original, panties, pantyshot, partially_visible_vulva, polka_dot, polka_dot_panties, red_necktie, ribbon, school_desk, school_uniform, serafuku, sironora, socks, triangle_hair_ornament, twintails, underwear, white_panties