Jiang Wantang takes her younger sister's place in marriage and enters the Xiao household, only to discover that her husband has died in battle at the border. She protects the family business, raises an adopted son, and builds a thriving life for herself. A year later, Xiao Jinghuai returns alive. Faced with a husband who appears out of nowhere, Jiang Wantang must hide her secret savings while dealing with a romantic rival who comes knocking at her door. Through repeated crises and by standing side by side, the two go from testing each other to sincerely loving one another. In the end, they join hands to protect the Xiao family and find true reunion and deep affection.