After thirty years of marriage, Jiang Shuyi discovers that her husband, Qin Yanzhou, has teamed up with Chen Yue, an old acquaintance, for a community couples' talent competition. Qin Yanzhou takes meticulous care of Chen Yue while neglecting his wife, who suffers from cerebellar atrophy. The pair win the title of 'Most In-Sync Couple,' and Chen Yue publicly humiliates Jiang Shuyi. Heartbroken, Jiang Shuyi asks for a divorce, and the emotional shock causes her memory to deteriorate. Qin Yanzhou finally realizes his mistakes and silently stays by her side, hoping to make amends. Although Jiang Shuyi lets go of her resentment, she refuses to rekindle their relationship. Chen Yue eventually lets go of his obsession and chooses to leave. In the end, Jiang Shuyi accepts Qin Yanzhou's companionship, deciding to treat the days ahead as if they were meeting for the first time.