In the Forbidden City during the prosperous period of Qianlong, two talented and beautiful girls were hidden deep in the Phoenix Palace - the eldest princess Gu Lun, Cheng Huan, and Heshuo Gege Qing'er. They are cousins and the most important friends in each other's lives.
Cheng Huan, the eldest daughter of Empress Fucha, was Qianlong's favorite princess. She was dignified, intelligent, and thoughtful. She disdained the vulgarity of the new "folk princess" Xiao Yanzi in the palace, and she didn't like Ziwei's deliberate pursuit of her father. Qing'er, the orphan of Prince Yu and Jie Yuhua who grew up under the Queen Mother's knees, is gentle and tough, and always maintains sobriety and dignity amidst the turmoil.
When Xiao Yanzi and Ziwei caused waves in the palace, Cheng Huan and Qing'er chose to watch with cold eyes, but they were also involved in a deeper undercurrent. The concubine is ambitious and wants to consolidate her power through the marriage of the two princesses to the Fucha family, and conspiracies and schemes follow one after another. And two young men - the imperial guard commander Fucha Mingrui and the young general Fucha Mingchong, broke into the hearts of the two princesses respectively.
Ming Rui is cold and affectionate, and has been secretly in love with Cheng Huan for many years, protecting her with his life; Ming Chong is passionate and straightforward, falls in love with Qing'er at first sight, and pursues her passionately. The two couples have gone through palace battles, court games, and family ups and downs. They have been inseparable from childhood sweethearts to old age, and their lives have explained what it means to be "a pair for life."
The two girls stand side by side, and the phoenix sings in the sky. This is a story about female friendship and peerless love. See how two noble souls live out their own legends in the deep palace.