The Wife's Secret

Quick answer: 3 episodes, English original audio, and episodes 1–3 play right here tonight.

Elinor was in love with Jasper until her sister Lila seduced him and left Elinor's mother in a coma. One year later, Elinor saves the life of Kyle, chairman of the Kyle Group—who is also Jasper's father. Kyle falls for her, and they quickly fall in love and secretly marry. At the wedding, Elinor humiliates Lila and Jasper as the new matriarch, beginning her revenge. She joins the group, lands a ten-billion-dollar project, exposes a money-laundering scheme, and drives Jasper into a bad investment that gets him expelled from the family by Kyle.

Desperate, Jasper publicly reveals Elinor's revenge plot, then stabs Lila to death and is sentenced to life in prison. Three months later, Kyle lets go of his resentment and Elinor lets go of her hatred. Three years later, Elinor's mother wakes up, and Elinor and Kyle have a son. The family of four lives happily ever after at Warren Manor.