Korean dramas Miss Mermaid and The Temptation of Wife

Miss Mermaid: This lady's father abandoned his wife, married the actress San Xiao and gave birth to a daughter. Her younger brother died, her mother was blind, and her face was disfigured in a car accident (later plastic surgery). Their life is so hard and miserable, but their father and three children are very happy. The hostess vowed to take revenge. She approached the man (the man and her half-sister were regarded as a pair by the elders), and the woman and the man were at arm's length, and the man was deeply attracted by her ... It was in line with what you said, "The heroine seduced the man", but this is a long drama, and it takes some patience to watch it.