Nine Dragons Ancestor: the Seven Sins Demon God

The Demon God of Seven Sins broke his seal and reappeared in the world. Liu Yuan, a hot-blooded otaku, accidentally traveled to the year 2100 where the Demon God of Seven Sins lived. In an accident, he became the savior and obtained the power of the Nine Dragons (Golden Dragon, Blood Dragon, Poison Dragon, Ghost Dragon, Sky Dragon, Black Dragon, Green Dragon, Yuanlong and Shilong (the first dragon, the ancestor of the Dragon Ancestor)), and he used the power of the Nine Dragons to fight against the devil.