The most beautiful daughter in the capital, Ming Xiaoxiao, is the only daughter of the general who governs the country. She has been doted on since she was a child, but she was involved in a whirlpool of intrigue and emotion due to a "sister-in-law selection controversy". Faced with her father Ming Yue's urging to marry, she set up a "selection of son-in-law" and used unconventional examination questions such as cooking, chess, calligraphy and painting to make things difficult for the suitors. However, she unexpectedly attracted four men with very different identities: the cold and ruthless King Jing Shi'an, the Wenrun Crown Prince Wu Jing, the ambitious Crown Prince Xi Jingci, and the Dingbei King Chu Yu who had great military exploits. Jing Shi'an has secretly admired Xiaoxiao for many years and is willing to give up the throne to marry into the general's palace; Wu Jing protects her silently but eventually becomes a brother and sister; Xi Jingci and Chu Yu have their own plans and create crises many times.
In the ridiculous selection, Xiaoxiao gradually sees through the conspiracy, and joins forces with Jing Shian to resolve border wars and court rebellions, from testing each other to trusting each other in life and death. In the end, Jing Shi'an won Xiaoxiao's heart with his astonishing move of "marrying" into the general's palace. The two joined hands to protect their home and country, creating a legendary marriage of "a woman marries a man". And Xiaoxiao also uncovers the past of her mother as she grows up, inherits the unique knowledge of medicine and poisoning and the ambition of being a general, and builds a prosperous and stable world with Jing Shi'an, leaving behind the eternal legend of "the couple of gods and gods".
