Liu Mianmian, a concubine of the Liu family, married Xiaojin, the king of Jin. For three years, she kept to her duties, drank the medicine to avoid her son every day, and left as soon as her sister-in-law returned. She also secretly saved money for her future. Unexpectedly, when her eldest sister's return was approaching, she unexpectedly became pregnant. Out of fear, she simply set a fire and faked her death, and took her confidants south to avoid disaster. But before he could get far, he was caught up by Xiao Jin. She thought she was just Bai Yueguang's substitute, but she didn't know that this substitute marriage was a trap set by King Jin for her. All the forbearance and escape were not worth the deep love he had hidden for three years.