Scholar Zhang Junrui (Ron Ng) and Hongniang (Myolie Wu), the maid of the prime minister's daughter Cui Yingying (Michelle Ye), each picked up half of a mandarin duck buckle at the Lantern Festival, but unfortunately the lovers never knew about it. Zhang Junrui's extraordinary literary talent at the Lantern Festival attracted Cui Yingying, and Hongniang also had a good impression of him. Later, by chance, Junrui encountered a thief who intended to kidnap Cui Yingying. He risked his life to save Yingying and finally saved Yingying's reputation. Prime Minister Cui agreed to marry Yingying to Junrui. Unexpectedly, the prime minister's wife looked down on Junrui's background and insisted that Junrui could only marry Yingying after passing the imperial examination. So Junrui moved into the west wing and studied hard while waiting for the exam. On the other hand, the current emperor Tang Dezong disguised himself as a rich man Wang Wenbin and traveled around. He met the bad Cui Yingying and was attracted by her beauty. So he tried his best to get close to Yingying and tried every means to make her happy. Yingying initially thought Wang Wenbin was very boring, but gradually fell in love with him through contact. As Hongniang gets to know Junrui, she gradually falls in love with him. Will this love triangle end happily for everyone?