Seeking revenge for her family's death, assassin Mei Lin is secretly trained by Prince Murong Jing He, the very man behind her suffering. Disguised as a bride, she awaits her chance to strike him down.

In the tenth year of the Zhanghe era, rebellious crown prince Xia Qiguang is sent to study under the scholar Mo Wang, unaware that his teacher is the legendary general Mo Qingchuan in disguise. As they bond through trust and sacrifice, they fight to restore honor to fallen heroes and protect their kingdom.