Cheng Nianan marries the aloof and gentle Shen Zhizhou through a family-arranged marriage. Their three years of marriage remain consistently polite and distant, like bland plain water. Mistaking this union for a complete lack of affection, she resolves to end the marriage. Amidst the tug-of-war and probing, she gradually discovers that beneath her husband's calm exterior lies a deep, unwavering partiality and careful guardianship nurtured over the years, and she also clears up the truth about the interpersonal relationships around her. When Shen Zhizhou's restrained disguise peels away layer by layer, the two finally face their true feelings, embrace each other's most authentic selves, and confirm a deep affection that belongs exclusively to one another while staying together.