To protect her eldest sister, Yueling, the youngest princess of Dongyu, becomes engaged to Zhou Shiyu, the North Prince of Beishuo. During their journey to Beishuo's capital city, they face numerous assassination attempts. Their connecting jade pendant activates a Time Gate, allowing Yueling and Zhou Shiyu to repeatedly revive and strive to change their destiny while addressing their nation's challenges.
The Crown Prince of Yan, Yu Fei Chen, is set to marry Yin Nan Yao, the daughter of a top general. However, an assassin sent in her place faces unexpected challenges as she navigates deception and conflicting emotions while dealing with the Prince.