2girls, ahoge, arms_up, black_hair, blonde_hair, brown_eyes, c, clothes_writing, copyright_name, dust_cloud, frown, grin, hair_ornament, hairclip, lab_coat, long_hair, long_sleeves, looking_at_viewer, multiple_girls, no_pants, o_arms, onii-chan_wa_oshimai!, outline, oversized_clothes, oversized_shirt, oyama_mahiro, oyama_mihari, purple_hair, red_shirt, rokochandayo, shirt, short_sleeves, siblings, sisters, smile, spoken_o, spoken_x, t-shirt, twintails, v-shaped_eyebrows, wavy_mouth, white_outline, white_shirt, x_arms