Single mother Hong Meigui (played by Yoo Ho-jeong) is a typical housewife who nags her daughter Hyun-ah (played by Chae Soo-bin) and knows everything that happens in the world. One day, by chance, Hong Meigui meets her lover Minghuan (played by Park Sung-woong) when she was young. Minghuan wants to expose Hong Meigui's past, which makes Hong Meigui's peaceful life ripple. To make matters worse, Hong Meigui's good friend Shunzhe (played by Oh Jung-se) who has been with her for 20 years also gets involved, which forces her to recall her past when she was young, and recall the self who once dreamed of becoming a singer and experienced young love.