Zhang Lisha Yeesa (played by Wu Haixin) is an ordinary girl born on February 29. In 2017, Yeesa celebrated her birthday on February 28. At 11:59, she traveled through time and space and came to the freezing cold Hokkaido. During the process, she met two men who were connected to her future lifeline - Ma Zhihao Ryan (played by Xu Tianyou) and Yu Jiacong (played by Liu Junqian). Both Hong Kong boys claimed to know her. 24 hours later, Yeesa traveled back to Hong Kong, but only one second had passed in reality. Yeesa found that her ability to travel through time was involuntary, and she actually got to know Ryan and Jiacong again in reality... The gears of fate are turning quietly...