King Maker

Song dynasty's first prince, Zhao Yun, and second prince, Zhao Rui, greedily competed for the throne. Yu Jing and Tung Chiu are responsible for advising each prince. Jing and Chiu are old family friends who have a mentor-friend relationship. Jing's father, Yu Pok Man, brought trouble to the family when his achievements made his boss feel uneasy.
Since then, Jing has separated from his younger brother, Yu Ching, and sister, Yu Jing. Ching was deceived into becoming an imperial eunuch, while Jing lost her memory, but fortunately, triad boss Yim Sam Leung took care of her. Jing later turns against Chiu when he misunderstands him for betraying his father for his personal benefit. With the big villain Yeung Chi San in the mix, it becomes fire against water between the two, unfolding a battle of wits.