They couldn’t be any more different: Mu Wan Qing (Yang Zi Shan), the “lion”, is a cold but successful CEO while Liu Qing (Zhu Ya Wen), the “lazy cat”, is a former special forces soldier who is now idling around. The two meet each other for the first time at their own wedding and don’t get along. However, while getting through several crises that hit Wan Qing, the couple gradually learns to support and eventually love each other.
Summer 2003 in Beijing during the SARS epidemic. Hua Duo Duo (Yang Zi Shan), who just graduated from university, bumps into the conglomerate heir He He (Ryan Zheng) and a conflict between the two results. By coincidence, Duo Duo ends up jobbing at the He’s. Although her first impression of He He was extremely bad, after associating with him for a while, she realizes that he isn’t the good-for-nothing he pretends to be, but in fact dreams of founding a gaming company. When He He falls of a building and loses his ability to walk, he becomes depressed. During these difficult times, Duo Duo is the one to stay by his side and support him.
During the anti-revolutionary coup in 1927, Xia Heng Xuan dies while saving the Communist Party member Ren Zhi Yuan (Kevin Tan), and leaves behind her younger sister Xia Yu Zhu (Yang Zi Shan) and her maid Shuang Ju (Nikita Mao). While the delicate Yu Zhu tries to earn a living alone, Shuang Ju enters the Kuomintang’s special agent organization on the recommendation of Zhi Yuan’s lover Xiao Cheng Bi (Liu Min). A few years later, Yu Zhu saves Zhi Yuan by chance. After Zhi Yuan sacrifices his life, Yu Zhu is touched and decides to work for the Communist Party’s underground organization. There she gets to know Cheng Bi’s younger brother Xiao Jun Hao (Chen Xiao), who received the same mission. While they work together, feelings develop.
The story started in high school. Su Yun Jin (Yang Zi Shan) was a gentle and quiet student, while Cheng Zheng (Elvis Han) was the total opposite of her. He fell in love with her and started to pursue her until they sat in college, even when they studied in a different university. After a while they finally started dating. However, the difference in their family background and personalities caused them to part way with each other. A few years later, Yun Jin established a successful career and Cheng Zheng reappeared in her life.