Dawn is Jing Ke's child. Ying Zheng, the king of Qin, fell in love with Li Ji at first sight, knowing that Li Ji already had someone he liked, but he still refused to give up, forcing Li Ji to enter the palace on the condition of changing the antidote to save Jing Ke. When Ying Zheng got Li Ji, he found that she was pregnant. He is angry and helpless. He was angry that Li Ji was pregnant with someone else's child, but there was nothing he could do about Li Ji.
Li Ji insisted on having a baby, and Ying Zheng agreed to get Li Ji's heart. He also named the child Qin and admitted that the child was his own flesh and blood.