Secret Wife‑Secretary: The Billionaire’s Double Life

Ava, who was forced to sign a divorce agreement and leave far away on the night she gave birth five years ago, returns to the old place five years later to save her son suffering from leukemia, and is forced to become the secretary of her ex-husband who "hates her to the bone" — she must hide it from everyone and get pregnant with his child again to save her son's life with the umbilical cord blood.