On a cold Valentine’s Day, Xiao-Hua meets the gentle A-Wen and the carefree charmer Zi-Jie, whose lives soon intertwine with hers. As love triangles, betrayal, and old flames resurface, Xiao-Hua must face her true feelings—before time runs out for Zi-Jie.

Xiang Wei-xin, a 17-year-old high school sophomore, regards eating as the most important and most healing thing in life. The first time she met her senior Tao You-quan was in the school's welfare agency. At that time, Xiang Wei-xin lost 5 yuan and could not buy her favorite pineapple bread. Tao You-quan made up the money for her, which made her feel deeply indebted to her.

The story unfolds with an allegorical inspiration from the well-known fairy tale, The Little Mermaid, in which the mermaid princess falls in love with the prince it saves from drowning, with a surprising twist of the mermaid being a young boy…