Rule 34 Dev - 2others alternate_hairstyle amethyst_(houseki_no_kuni) androgynous black_neckwear braid cojima dated gem_uniform_(houseki_no_kuni) hair_over_one_eye holding_hands houseki_no_kuni multiple_others nail_polish necktie purple_eyes purple_hair short_sleeves shorts siblings signature smile twins twintails twintails_day|8957803023