Nineteen-year-old Su He has her university admission letter hidden by her father, who forces her into marriage. On their wedding night, her husband, Cheng Yuanshan, runs through three villages borrowing 5,000 yuan. All he tells her is, "Go to school." Over the next seven years, Su He overcomes poverty and prejudice to earn a master's degree, while Cheng Yuanshan endures injuries, illness, and debt to support her education. After graduating, Su He gives up the chance to stay in the city and returns to Maitian with her job offer in hand. "I'm not back just for a visit. I'm back to spend my life with you." Their marriage transforms from a debt of gratitude into a lifelong commitment.