In a world where life is finite but the Heavenly Dao is everlasting, Gu Hai, a man transported from the 21st century, emerges as a skilled player in the realm of commerce. Amidst turbulent wartime, he devises cunning tactics to aid the Chen Empire against the Song Empire. Intrigued by his prowess, a celestial fairy entrusts him with a pivotal quest, one that could either bring about salvation or sow seeds of strife and discord across the land.