arashiyama_sayoko arm_behind_back arm_behind_head arm_up armpits artist_name bare_shoulders black_hair blush breasts brown_hair cleavage heart hime_cut imitating kobayashi_jin long_hair long_sleeves lying medium_breasts multiple_girls natsu_no_arashi! navel one_eye_closed red_eyes ribbon sayaka_(natsu_no_arashi) school_uniform serafuku skirt smile socks standing yellow_eyes