Chaeyoung has never done it before, to travel overseas by herself. She has never been to Japan as she pick this country to be her first experience. While her parents worried about her crazy plan, she assured her parents every day that she’ll be okay, she's not a kid anymore, even she promised them to call every day if they want to and it’s not like she will travel really far from home. Japan is not that far, right? This story is basically tells about how Chaeyoung will spend her days