The Continuation of "Long You Tianxia"

What kind of sparks will arise when the wise him meets the kind-hearted her? What is the story of him meeting her who is loyal and eloquent? He is the leader of a country, and he goes all the way to solve the case in secret in order to find his biological mother and biological sister and reunite their family as soon as possible. She was a princess of a country who was supposed to be high and mighty, but accidentally arrived in Chu State and was adopted by her adoptive parents. She didn't want her parents to be killed when she became an adult, so in order to avenge her adoptive parents, she followed her mother's orders to protect him all the way, but she secretly had a crush on him.