Oil On Hands tells the story of Tiezhu, who, after working away from home for three years, saved up thirty thousand yuan in bride price and returned to his village to marry, only to find that his fiancée Feng Na had been promised by her family to Ergou in the village. In a moment of disillusionment, upon learning that his neighbor girl Wanwan's mother had passed away while working in Guangdong, he resolutely took Wanwan south to retrieve her ashes. After returning home, Tiezhu pooled money to call off the engagement between the Feng family and Ergou, and successfully married Feng Na as he wished. After marriage, he opened a repair shop in the village using his auto repair skills, managing it steadily with partners and gradually developing, supporting a secure life through grease-stained labor, which verified the simple life belief that "with oil on your hands, your heart is not panicked".