Rule 34 Dev - 1girl ;o animal_ears black_hair blush green_eyes green_pajamas hair_down horse_ears horse_girl kamitsuki_shion long_hair looking_at_viewer multicolored_hair official_alternate_costume one_eye_closed pajamas satono_crown_(umamusume) signature simple_background solo streaked_hair towel umamusume white_background white_hair|25010646219