Cai Wanzhen (played by Zhang Junning) and her boyfriend Shen Haojie (played by Peter Ho) have been dating for many years and have a very good relationship with each other. As an editor, Cai Wanzhen is very busy at work. Under huge workplace pressure, she has to spend almost all her time in the office. Shen Haojie understands his girlfriend's busyness very well and gives great support, becoming Cai Wanzhen's strongest backing. A puppy named Larry accidentally came into the lives of Cai Wanzhen and Shen Haojie and became a part of the family. However, the only one who can really accompany Larry is Shen Haojie, because Cai Wanzhen is really too busy. Over time, the relationship between Cai Wanzhen and Shen Haojie began to crack. At the same time, Larry fell ill and his life clock began to count down. In this case, what choice will Cai Wanzhen make?