In order to improve his family's status, Jian Mingshu's father cast a wide net to support poor scholars, hoping that they would become his daughter's husbands after winning the imperial examination.Lu Lang is one of them. He and Jian Mingshu have known each other since childhood, but due to their family background and self-esteem, their relationship has gradually become estranged.

Jian Mingshu accidentally fell off a cliff and lost his memory, but he escaped the massacre and was rescued by his sweetheart Lu Wan. The two went to the capital to take exams together.In order to cut off Jian Mingshu's feelings for Lu Wei, Lu Wei lied that she was his sister.

In the capital, in order to support his family, Jian Mingshu began to investigate cases and solve mysteries. He gradually recovered his memory and discovered the truth behind the annihilation of his family.In the end, Jian Mingshu and Lu Yu confirmed their feelings while protecting each other, and faced the challenges of life together.