general who overthrew the Qin dynasty but has a tragic end as he became a dictator. Hong then exclaims in English "Shit!" Cast Note: Character names are in Cantonese romanisation. Main characters Louis Koo as Hong Siu-lung (), the protagonist of the story. Born in 1975, Hong was orphaned at the age of three and spent most of his childhood in foster care. Sociable, diligent and smart, Hong graduates to VIPPU officer after only one year of training. When his girlfriend of seven years breaks up with him, Hong agrees on a time travelling project organised by Lee Siu-chiu on the condition that he will see his girlfriend again when he returns. Raymond Lam as Chiu Poon / Ying Ching (), the son of Princess Chiu Nga and General Zhao Kuo. He is despised by other nobles due to his mother's promiscuous reputation. After Hong rescues Lady Chu from the Zhao state, Chu mistakes Chiu as her deceased son, Ying Ching. Through Hong's coercion, also compounded by his personal lust for power and vengeance, Chiu becomes the crown prince of Qin and ascends to the throne, subsequently becoming the First Qin Emperor, the First Emperor of a unified China. Kwong Wa as Lin Chun / Lo Oi (), a swordsman who used to serve Chiu Muk. He is abandoned by Chiu after Hong injures his right arm in a duel. During his banishment, Lin meets Lo Oi, a left-handed swordsman. After convincing Lo to teach him left-handed swordplay, he kills Lo and takes his identity. Sonija Kwok as Chun Ching / Kam Ching (). Chun Ching was Hong's girlfriend of seven years, but broke up with him after he reneges the wedding promise. Hong agrees to participate in a time-travelling project after he was assured that Chun Ching would return to him. After Hong is transported to two thousand years back, he meets Kam Ching, a female scholar who resembles Chun Ching in appearance and they develop a romantic relationship. Jessica Hsuan as Wu Ting-fong (), the impulsive and spoiled daughter of the Qin loyalist Wu Ying-yuen. Although disgusted by Hong's flirtatious nature, she gradually becomes jealous of her own accord when she sees him with other maidens. Nonetheless, Wu develops a close friendship with Princess Chiu Sin and often visits her. Joyce Tang as Sin-yau (), a female assassin. She was an orphan. She becomes the apprentice of Mohist