Situ Mo (played by Xing Fei) is about to graduate. She has been accustomed to obeying arrangements since she was a child. She is confused about her future and tries various arrangements with the flow. She always can't muster up the courage to make a choice for herself. Due to the merger of the new and old campuses, Gu Weiyi (played by Lin Yi), a top student in the Department of Physics, broke into Situ Mo's life, and her ordinary life set off a wave of laughter and tears. After several battles, Situ Mo and Gu Weiyi, a pair of happy enemies, gradually walked into each other's hearts, and accidentally became allies in sharing a house. In the process of getting along, the two gradually let go of their prejudices, and with the encouragement and help of each other, they found a new direction in life and career, and also gained love. The two experienced graduation, job hunting, and work together, and then they realized that the warmest hour of time is to take the right path and do the right thing with the right person. This film is adapted from Zhao Qianqian's novel of the same name.