Frost and snow cover the city, and the long river shines on the iron coat. A general who returns from the snowstorm has the wounds and light left by fate on his body - he can hear the slight trembling of cold iron when the sword is shining, and can smell the tilt of the battle situation at the turning point of the wind and shadow. A princess from Beiyuan, hiding her name as Yi Jia, entered the enemy army as an unknown soldier. Thousands of miles away, the two met between the armor and the snow. They rescued people in temptation, defended the city in doubt, left hatred to the dust, love to the stars, and the world to the people. When the snow fell and melted, and the moon turned white above the city, they stood side by side and said to the lights of thousands of families: I hope there will be no war in Chang'an from now on.
