Dasheng is deep in the palace, the imperial power is on the sidelines, and the maternal relative Zhao covers the sky with one hand. Prince Chengkang has an empty title, no soldiers and no power, like a trapped animal in a cage. However, when his father is seriously ill and the Queen Mother forces a marriage, every step of the way is doomed. In order to avoid being killed, he used excuses to leave the palace. However, he was hunted down in Munan Mountain and fell off a cliff to his death.
Lin Cui'er, an orphan girl in the mountains, encounters a seriously injured prince while collecting medicine, and rescues him regardless of his own safety. A firefly lamp tied by one's own hands illuminated the cold night in the mountains and warmed the prince's lonely heart. Accompanied by commoners, no matter their status, he is a down-and-out scholar, and she is a simple country girl. They fall in love under the moonlight and promise for life.
However, a storm in the palace suddenly arose, and Cui'er was kidnapped into the palace. Her former deep love turned into a secret love forbidden in the palace, and she became a problem that must be eliminated in the eyes of the Queen Mother. Forced marriage, frame-up, poisoning, and house arrest, Empress Dowager Zhao was so obsessed with power that she committed regicide and planned to depose the prince and establish a new puppet.
The sweetheart is trapped in the cold palace, the country is treacherous and sycophantic, and the gentle prince finally can no longer tolerate it. He fled to the end of the world, gathered righteous people and made loyal ministers. The firefly lamp of love actually concealed the imperial decree to pass down the country and became the trump card for the comeback.
From a prisoner in the palace to an exiled prince, from a commoner's love to an emperor and an empress, he returned with a lantern, commanded his troops to quell the troubles, purged the traitors, set the course for the government, and guarded the country with benevolence.
With her humble body, she accompanies him to survive the desperate situation, and with her character and strength, she sits firmly in the back seat. The glimmer of fireflies, although weak but tough, can eventually illuminate the majestic emperor's palace, creating an eternal story of an emperor and his people staying together in a prosperous age.
