Ma Zhenzhu, Wan Ziqian, Wu Meili, and Han Jia are best friends who grew up together in the suburbs of Beijing. When they reach the age of marriage, they are not in a hurry. The four of them agreed that there is no age when they must get married, only love that requires marriage. By accident, they took over a second-hand decoration company and entered the field of decoration that only men can do. The four Dabais did not understand decoration at all and were ridiculed by various customers. Undeterred, they took off their red makeup, put on work clothes, learned skills from the decorators, and had food and accommodation at the construction site. After going through many hardships, they finally received their first wall-painting business, earned their first money, and the company went bankrupt. Then they received their first big order. Due to poor management, they almost had the upstairs and downstairs houses turned upside down. The customer angrily wanted to cancel the order. Ma Zhenzhu led everyone to find ways to make up for their mistakes and restore their reputation and losses. On the road of decoration, they met all kinds of weird landlords, and relied on their wisdom and hard work to avoid danger. In terms of love life, photographer Li Zigao fell in love with Ma Zhenzhu, but Ma was not interested in him. In the end, Li Zigao and Wu Meili came together. Ma Zhenzhu and financial genius Yang Jinlong admired each other and finally came to an end. The arrogant Wan Ziqian was hailed as a princess by migrant worker Song Guangzu, and finally won. Han Jia and her college classmate Xiao He came together after many hardships. After a year of entrepreneurship, the decoration company gradually gained a firm foothold. Faced with temptation, Wan Ziqian left the entrepreneurial team and started a new business. She also started a fierce battle with Ma Zhenzhu in the mall, and her former best friend became a mortal enemy.