3girls, :d, :o, black_hair, brown_eyes, brown_hair, girl_sandwich, green_eyes, hair_bun, holding_another's_arm, long_hair, midriff, multiple_girls, navel, open_mouth, pleated_skirt, polka_dot, polka_dot_background, red_eyes, red_hair, sandwiched, school_uniform, serafuku, skirt, smile, two_side_up, uranohoshi_school_uniform