Ethan Lockwood and Sophia Whitmore shared a one-night stand, and from it, three children were born — two girls and a boy. But Julian Sinclair, the villain and Sophia's fiancé, secretly delivered two of the children — the boy, Leo Lockwood, and one of the girls, Lily Lockwood — to Ethan's doorstep, keeping only the other girl, Grace Sinclair, and raising her as his own child with Sophia. Sophia, meanwhile, remained entirely unaware that the one-night stand had ever happened.
Six years later, Leo and Lily came to Sophia and revealed the truth, but she refused to believe them. Julian, desperate to keep the secret buried, did everything in his power to block her from uncovering it — until Ethan Lockwood presented a DNA test report that finally made her believe.
Determined not to lose Sophia, Julian resorted to poisoning the three children. In the end, his scheme was exposed and he was taken away by the authorities. Ethan, Sophia, and their three children lived happily ever after.