Forbidden Wife: Daddy, This Is My Real Mommy— Episode 4

Ella, a wealthy heiress switched at birth, grows up in a foster home. One rainy night, she rescues tech mogul Xavier and shares a one-night stand, then slips away. Her biological billionaire parents find her, but to protect the hit-and-run fake heiress, they force Ella to take the blame and go to prison. Before incarceration, she discovers she's pregnant; after a suspended sentence, she gives birth but is told her baby died. She serves five years. Upon release, she becomes a tutor for Xavier's son—until the boy needs an emergency blood transfusion, and the blood type match reveals the truth: she is his biological mother.