Zanghai was originally the son of the Imperial Astronomer. However when he was young, he witnessed his whole family being murdered. Deciding to set on the path of revenge, Zanghai decides to draw in his claws temporarily; and began training his skills by learning construction and the art of war. Ten years later, he returned to the capital with a changed face, and came under tutelage of his enemy Duke Ping Jin as his advisor. From the Lord manor to the court, from an ordinary advisor to becoming the chief minister of the imperial cabinet, Zanghai struggled in the face of treacherous political intrigues and battles; and finally got a chance to kill his enemy. However, he discovered that he had only just glimpsed a corner of the conspiracy... Facing the unknown road ahead, Zanghai teamed up with his beloved friends to overcome obstacles and uncover the conspiracy; defending their country.