Siu Sau King, who has served three generations at a century-old tofu factory, uses her position as general manager to protect her distant relative, Tou Wai Lung. It draws the ire of the heir, Dau Cheung. Coincidentally, his friend Wong Siu Ming lost his job and broke up with his girlfriend Gei Hiu Ying and is looking for a change. The two of them click instantly and decide to institute major reforms at the company. The new and old camps battle against each other day and night.