(Young love goes in both directions, and it grows in love over time.)
Su Ying has been pregnant with Canyu since she was a child. Later, she went to the capital to study. She met Mo Xun and learned that he also had Canyu, and then she found out that they had already made an engagement.
In the early stage, a boy and a girl fall in love on campus; in the later stage, the male protagonist is an imperial guard and the female protagonist is a female officer.