The Emperor of Light and Darkness of the Divine Seal Throne

In the Holy Demon Continent where demons are raging and the six human temples are struggling to survive, Tang Jiuxia, a young man from Odin Town, resolutely embarks on the road of knighthood in order to save his mother who suffers from a spiritual disorder. During the spiritual awakening ceremony, he showed the perfect physique of a "Son of Light" that is rare in thousands of years and has an innate spiritual power of 99 points. However, the old badge left by his father triggered the ultimate dark power and became a taboo existence that the Temple Alliance regarded as a heretic and the demons coveted crazily - the "Twins of Light and Darkness". In order to protect his family and survive, Tang Jiuxia chose Zangfeng and lurked as a mediocre attendant with "only 20 points of innate spiritual power", secretly accumulating power enough to subvert the world. When the curse of light and darkness reaches its peak, and when the call of the Divine Seal Throne resounds throughout the continent, what kind of dawn will the young knight's long sword cut out?