The story begins in the 11th year of Zhenguan. Ruyi (Fan Bingbing) participated in the election of the Tang Dynasty harem. She shocked the audience with a piece of "Lanling King Entering the Battle", attracting the attention of Emperor Taizong of Tang Li Shimin (Zhang Fengyi). However, Ruyu, who was full of joy, was harmed by a traitor and was sent to the cold palace before she was favored. A year later, Ruyi was released from the cold palace and her status in the palace rose steadily, which brought her love and glory, but also put her in danger. Li Shimin believed the slander and left Ruyi. The heartbroken Ruyi shaved her head and became a nun, vowing to cut off worldly ties. However, the child in her belly made her determined to return to the palace, but she didn't expect that this decision would ruin the life of her unborn child. Ruyi, eager for revenge, turned to Emperor Gaozong of Tang Li Zhi (Aarif Lee), but developed a sincere relationship with him. After six years of Yongwei, Ruyi finally climbed to the throne of the queen in a bloody way.