Once in time, Lin Jiaoyue, a senior white-collar worker, became the concubine in the harem of the new leader of the Duyao Dynasty; her ups and downs in two lives and years of experience in the workplace allowed her to keep a secret amidst red walls and green tiles that were a thousand times more complex; in this battlefield that she would eventually be involved in, whether intentionally or unintentionally, she slowly understood that what she had to do was not only survive to the end, but also live the best.