Luo AiLa (Lee Min-jung) and Cha Jung-woo (Joo Sang-wook) have been married for many years. Cha Jung-woo gave up his stable civil servant job and decided to start a business, but he encountered failures again and again. In the long run, Luo AiLa, who was afraid of losing her livelihood, finally decided to divorce her husband. Three years later, Cha Jung-woo finally became a wealthy chaebol. After learning about this, Luo AiLa decided to work in her ex-husband's company. Cha Jung-woo's success is inseparable from the help of Guo Ruzhen (Kim Kyu-ri). Guo Ruzhen thought that her relationship with Cha Jung-woo's family was a done deal, but she didn't expect that her ex-wife Luo AiLa would appear halfway. At the same time, Guo Ruzhen's younger brother Guo Shengxian (Seo Kangjun) was forced to come to the company to work, but he was attracted by Luo AiLa's sincerity and unrestrainedness. Cha Jung-woo originally resented Luo AiLa's abandonment, but gradually rekindled his old feelings in the process of getting along.