Five hundred years ago Monkey King made a riot in the Heavenly Palace, accidentally kicking over the sky stove and causing the Heavenly Fire to fall into the world. In order to save the common people, Princess Iron Fan tried her best to suppress fire, but the Red Boy in her belly was eroded by the true fire of the samida and became a devil boy.Every day, they steal your strength, your emotions, your love. We call them the Shadow. Work like us - to deliver them back to the Dark World. Impending disaster, and humanity can be at the mercy of darkness ... And only we can keep the balance