Bai Yutang's eldest brother Bai Jintang and Princess Zhao Shuangyan of the Song Dynasty
Three lives, one life
Responsibility, waiting
Guaranteed sweetness in the early stage, the game content has been changed due to the timeline
You can watch it as a fan of Chun Tian Dao OL, with a little bit of Mouse and Cat
It can also be watched as a large-scale side story of "Seven Five Heavenly Swords and Styx Blood Clothes".
It can be read as any original romance novel.