2girls, back-to-back, bad_pixiv_id, bow, bowtie, breasts, brown_eyes, from_side, grey_shirt, hair_between_eyes, hair_bun, large_breasts, long_hair, multiple_girls, original, parted_lips, puffy_short_sleeves, puffy_sleeves, shadow, shirt, short_sleeves, simple_background, single_side_bun, upper_body, yellow_bow, yellow_bowtie, yonchan