Homemaker Xu Banxia has spent three years tirelessly caring for her paralyzed father-in-law and wheelchair-bound mother-in-law. Yet when she asks her husband, Qin Shou, for just 12 yuan to buy a cup of milk tea, he humiliates and refuses her. Heartbroken, she resolutely divorces him and returns to the cleaning industry. On her very first day at work, she gets caught up in the theft of a 360,000-yuan diamond bracelet. Despite being falsely accused, she investigates the matter and proves her innocence, only to be blacklisted throughout the industry by her unscrupulous boss. Starting from scratch with her apprentice, Tang Xiaoyu, Xu Banxia establishes Qingxia Cleaning. Through professionalism and integrity, they secure major contracts with hotels and shopping malls, overcome her ex-husband's revenge and conspiracies, and ultimately achieve the freedom to buy milk tea whenever they want as she becomes her own boss.