The modern horticultural therapist Yu Zhi traveled to the Tang Dynasty and was accidentally involved in the palace secret case of Princess Taiping.
Faced with Princess Taiping's question about whether the flower could cure heart palpitations, Ju Zhi looked calm on the surface, but was thinking quickly in his heart. Thinking of the modern laboratory and the familiar cooling sensation of mint leaf juice, she firmly believed that plants had magical powers.
Ju Zhi decided to use his knowledge to quietly find a way to relieve Princess Taiping's heart palpitations. She secretly collected various plants in the palace for research and experiments. In the process, she met Fang Cuizi, a waiter who suffered from heart disease, and the two gradually fell in love with each other through cooperation. However, there was an undercurrent in the palace. Someone noticed that Ju Zhi was unusual and began to investigate her secretly. Juzhi found herself trapped in a huge mystery. It seemed that someone didn't want her to cure Princess Taiping's disease. During her investigation, she uncovers clues about palace feuds and murky secrets, each of which shocks her. As they get closer to the truth, the dangers faced by Chu Zhi and Fang Cuizi are also increasing. Juzhi's identity may be exposed at any time, and Princess Taiping's condition is getting worse. After going through countless hardships and obstacles, Juzhi found a special plant formula that might cure Princess Taiping. But just when she was about to implement it, she was involved in a thrilling conspiracy, and she and Fang Cuizi had to start a life-or-death contest with the mastermind behind the scenes. In the exciting adventure, whether they can protect their love and whether they can successfully cure Princess Taiping are all full of suspense, waiting for the final reveal.