In order to clear his grandfather's wrongdoing, Song Qingke bound the system to get close to the key person Lu Zhan. She used her similar appearance to Lu Zhan's sister to gain trust step by step. She started an emotional game with Lu Zhan while collecting clues about the arson case. During the process, the two tested each other and gradually developed a true love. Lu Zhan finally recognized the true face of his sister Su Haitang, and helped Song Qingke find the truth and clear his grandfather's name. The two also started a new life together.
