Lin Zi

In the reign of Emperor Taizong (627—649), which was called the Prosperity of Zhenguan, former clothing maker An is framed and imprisoned. When she was in danger, she entrusts her young daughter Liu Li to an old friend in the palace. Liu Li grows up in the palace and becomes a medical officer, responsible for epidemic prevention.

A Chinese peacekeeping unit is sent to war-torn Selya as part of a UN mission, tasked with engineering, medical aid, and security. Amid a deadly epidemic and rising threats from armed factions, a special task team works to protect civilians and support international efforts, forging deep bonds along the way.

It tells the story of the free and undisciplined ranger Yun Zhan and his master who are implicated in a bizarre case. They are accidentally suspected by the princess Shi Qiutong and the guard An Xuewu as the murderer. In the process of proving his innocence, Yun Zhan gradually finds the direction of his life and meets Shi Qiutong. They joined forces to solve the strange case, and since then they have shouldered their own missions and responsibilities to protect the safety of the people in the imperial city.