A hundred years ago, Emperor Long fell in love with an ordinary girl from the Yue tribe and gave birth to a baby boy, named Mirror. Although Dilong insisted on bringing the mother and son to live under the royal palace, the "dragon clan" strongly opposed their relationship. When the baby boy was five years old and sensible, the Dragon Clan sent his uncle, King Jiuyi, to hypnotize the maid who was serving the baby boy to poison the baby boy and his mother. King Jiuyi led his troops to assassinate everyone in the Yue Clan, killing everyone without leaving a trace...
A few years later, the boy in black appeared in front of King Jiuyi, claiming that he would avenge the Yue tribe and kill all the blood of the Emperor Dragon, just like they slaughtered him...