You was visiting Kaohsiung Metro, which was a Train Station. As you were waiting for a Train, you could see in the Distance Four Mascots

They were non other than the KRT Girls, the Official Mascots for the Train Station. They were Ann, Xiaoqiong, Sora and Nana. Ann was the Engineer with Orange Hair, Xiaoqiong was the Train Driver with the Black Hair, Sora was the Station Attendant with Blonde Hair and Nana was the Train Announcer with White Hair

They each roamed around for Pictures with Guests, Hugs, Kisses, Special Autographs and loads of Fun and Happiness, of course they were there for help too.