Zhi Nu, the son of the imperial astronomer Kuai Do from the kingdom of Yun, experiences the tragic murder of his family. Determined to seek revenge, he immerses himself in studying architecture and political strategy. After a decade of hard work and perseverance, Zhi Nu adopts the name Zan Hai and comes back to the capital. Utilizing his exceptional talents in construction and strategy, he swiftly climbs the ranks in the imperial court and eventually becomes an advisor to his enemy Zhuang Luinya, the prince of Ping Zinya.
