In Yanli country, Liu Jingshu and Liu Jia from the General's Mansion are twin sisters. At that time, twins were considered an ominous sign, so the younger sister Liu Jia hid her identity since she was a child and was secretly raised in the mansion by General Liu under the name of Ergou. Although the two looked exactly the same when they grew up, their personalities were completely different. The elder sister was gentle and generous, while the younger sister was lively and naughty, and often pretended to be her sister to sneak out of the mansion and play and cause trouble. When the two sisters were fifteen years old, at the engagement banquet of the marriage between the General's Mansion and the Xuanping Marquis Mansion, Xiao Renyan was unwilling to accept the arranged marriage easily, so he found a reason to leave before he sat down. Unexpectedly, he met Liu Jia who came to the kitchen to steal food. The two accidentally fell into the water, but accidentally kissed each other underwater. Liu Jia's true face was seen, but Xiao Renyan fell in love with Liu Jia. After reflection, General Liu felt that it was unfair for Liu Jia to be hidden all the time, so he took her to the border to raise her after the war began. Three years later, Liu Jia, who grew up in the frontier, is free and easy, has strong martial arts skills, but is also kind and straightforward...