Daxi, the president of Da's Group, a business giant in Lin City, was in an accidental coma due to Bai Yueguang's girlfriend Su Wanwan. He urgently needed to find a stand-in who looked similar to Su Wanwan to maintain the family's marriage plan. The cute stand-in Jian Jiali was chosen to get close to Daxi, but was accidentally bound to the "Love Strategy System" - the system regularly releases tasks (such as making Daxi smile, remembering her preferences, dating alone for three hours, etc.). After completing it, you can get rewards such as increased emotional intelligence and memory fragments (about Su Wanwan's true past). From the "employer-substitute" relationship of mutual defense, the two gradually unlocked the funny nature of Daxi under the gloomy appearance through misunderstandings, workplace conflicts, and family crises. Jane Jiali also broke through the shackles of the "substitute" in system tasks, and used her sincerity to pry Daxi's frozen heart. At the same time, Su Wanwan's childhood sweetheart Lu Chen secretly planned to reveal the truth about the double, trying to destroy the relationship between Daxi and Jian Jiali... In the end, Jian Jiali used the sincerity and courage accumulated in the system mission to not only help Daxi solve Bai Yueguang's obsession, but also transformed herself from a "stand-in" into a "only one."
