Intro;

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 In the distant past, there was a primeval kingdom, a cradle of myths and wonders, called Yīnféng. 

In Xi'An, there was an empress, the last empress of Xi'an. She is Xuan. A moon goddess. Even though everyone knows that she is a half demon, people still believe that she is a good being. She married to a man. They lived peacefully but the day came. The white moon turned red when Xuan's father arrived. 

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In peaceful and quiet place, Sizhou. There is an ordinary girl named Chi Yu. She is a daughter of a famous porcelain seller. But her mother was not just an ordinary personn. She also wondered what her mother was really hiding from her. Her mother always leaves whenever the moon turns red, this only happens after the Chinese new year where they believe that a great danger hides behind the red moon.