Sun Hanyao, a female high school student from the 21st century, accidentally returned to the 37th year of Kangxi reign of the Qing Dynasty due to the intersection of time and space. She found that Concubine De was exactly the same as her long-dead biological mother... Is it a coincidence or the past and present life? Because he is unwilling to change history, what choice will Hanyao make when facing the person he truly loves - Si Age Yinzhen?