In her 20's, Jang-mi wanted to become an idol. She got pregnant unexpectedly and gave up her dream. Jang-mi is now a middle-aged single mother and raises her daughter Hyun-a. She is a typical mother and nags Hyun-a a lot, but will do anything for her. One day, Jang-mi happens to meet Myung-hwan, who is her ex-boyfriend...