Heroine · Shen Qingci
· Modern identity: National treasure-level cultural relic restorer, knowledgeable in history, architecture, and craftsmanship, calm and tenacious.
· Ancient identity: The abandoned concubine of the Duke's palace was sent by her family to Prince Yan's palace in the north as a hostage.
Male protagonist·Yan Wang Xiao Jue
·Character: The patron saint of the north, he has great military exploits and is jealous of the court. He looks cold on the outside, but deep inside he has a passionate desire to protect the people of his home and country.
· Growth arc: From initially viewing the heroine as a "proton" who needs to be monitored, to being attracted by her wisdom and character, she becomes each other's strongest ally and lover, and finally protects the mountains and rivers together.
Purpose: The existence of the heroine is not to replace anyone, but to allow the collision of different civilizational ideas to give birth to a more open and powerful new civilization.