李司棋
Brother's Keeper is a story about two brothers of the same mother but different fathers, "Sam" Kiu Tin-seng (Ruco Chan) and Lo Wai-son (Edwin Siu). Sam was born in Hong Kong, the son of Chow Yuk-mui (Louise Lee) and Kiu Sum (Lee Kwok Lun). Due to Kiu Sum refusing to marry Chow Yuk-mui, Yuk-mui decided to take Sam to Foshan, China to start anew. In Foshan, Yuk-mui got married with Lo Fu-shing (Lau Kong) and gave birth to Son a few years afterwards.