Lu Zheng is a highly skilled automotive repair technician. After exposing refurbished brake pads and insisting on technical integrity, he is pushed out and resigns from Shengqi Automobile Group. Starting from scratch, he establishes Lu Zheng's Automotive Workshop. With his meticulous craftsmanship, he earns his customers' trust and meets Jiang Wanqing. Together, they take on a fraudulent auto parts market plagued by substandard products and defeat the inferior hybrid conversion scheme devised by his former rival, Zhao Peng. After weathering professional and romantic ups and downs, Lu Zheng remains committed to his technical principles and joins hands with Jiang Wanqing to begin a new chapter in business and love.