Du Jiuyuan, having given up on love after a three-year marriage ended in divorce, has begun to forge a new path as a strong and independent woman. However, her ex-husband, Ji Jinchen, seems to be increasingly present in her life, making subtle appearances and offers of support. When Du Jiuyuan is approached by a male colleague for a meal, Ji Jinchen intervenes, warning her in a low voice not to engage with others, lest he lose his mind. As Du Jiuyuan navigates her new career and relationships, Ji Jinchen's actions and words raise questions about his true intentions and the nature of their complicated past.