1girl bad_id bad_pixiv_id birdy_cephon_altirra black_jacket black_shirt couple eye_contact face-to-face forehead-to-forehead gloves green_eyes grey_hair hair_ornament hetero holding_hands impossible_clothes jacket long_hair looking_at_another mackerel_(sabanoneko) multicolored_hair nataru_shinmyou open_clothes open_jacket pink_hair red_hair shirt skin_tight smile tetsuwan_birdy tetsuwan_birdy_decode two-tone_hair