Po was an OCTB sergeant before being expelled from the police force which led him to join his friend Kit's security company and was hired by rich man Nam to be the bodyguard of his only son Cho. Po and Cho have different personalities and do not get along well; however, as times passes by, they develop a friendship.
Lui Tin-po
Fu Wai-fong
Fu Ching-kit
Kei Yin-cho
Shek Siu-yuk
Yau Yeuk-lam
Kei Chung-nam
