Zhai Ya and Qi Yueye, who lived together in a mountain village, went to the city to work together, each with their own secret life experience. Qi Yueye is a reclusive orphan who needs to study independently in order to inherit the family business; Zhai Ya is a book-wearing girl who knows the plot of the original work and is unwilling to follow the path of tragedy. The two worked multiple part-time jobs and entered the Su family by chance. Zhai Ya accompanied the amnesiac old lady, and Qi Yueye served as the housekeeper, living a careful and careful life. The two accompany each other day and night, guarding each other, while handling trivial matters of the Su family and resolving various misunderstandings, they gradually uncover their origins, go in both directions, and gain their own stable future through diligence and gentleness.