2girls, ahoge, arm_up, armpit_cutout, black_socks, blush, brown_eyes, brown_hair, chain, closed_mouth, clothing_cutout, coat, colored_inner_hair, cuffs, eyelashes, feet, grey_hair, grey_socks, hair_between_eyes, knees_up, lab_coat, legs, long_hair, long_sleeves, multicolored_hair, multiple_girls, neck_ribbon, no_shoes, one_eye_closed, onii-chan_wa_oshimai!, open_mouth, oyama_mahiro, oyama_mihari, pink_hair, pink_shirt, pink_skirt, purple_hair, qiufengxiaose, red_ribbon, restrained, ribbon, rotating_brushes, shirt, siblings, sidelocks, sisters, sitting, skirt, smile, socks, soles, squatting, streaked_hair, tearing_up, thighs, tickle_torture, tickling, toes, twintails, white_coat