Yan Zitong was forced to become a single-subject student, and Yang Liu became the head teacher of their class. One was Princess Diaoman and the other was Wu Dalang. They became "enemies and mortal enemies", but what they didn't expect was that she ended up becoming his underground lover.
In the midst of contradictions and hesitation, until her true love Shen Junyu appeared, she decided to escape from this circle and bid farewell to the dark yesterday...