After a betrayal leaves Mi Chuxia in a scandal with luxury brand president Tang Jingxing, both their reputations and careers take a hit. To control the fallout, they agree to a contract marriage, turning the gossip into an opportunity.
Prosecutor Jun Wu Jiu is sentenced to prison after he was framed for a crime he did not commit. Filled with hatred, he is determined to avenge his teacher and fiancee. In spite of his circumstances, he relies on his wisdom to solve many cases and uncovers an earth-shattering secret. Can the mayfly shake the tree? Can a prisoner exact justice?