Fueled by hatred , Ching Sau - Hang ( Christine Ng ) , Wan 's lover , marries Hang .
Fueled by hatred , Ching Sau - Hang ( Christine Ng ) , Wan 's lover , ironically becomes Wan 's sister - in - law .
Fueled by hatred , Ching Sau - Hang ( Christine Ng ) , Wan 's lover , marries Hang and ironically becomes Wan 's sister - in - law .