Sweet Debt, Secret Billionaire / Sweet Debt, Secret Billionaire (English-dubbed)

Corrie Scott, a delivery girl who happened to help an old man. To repay her mother's medical debts, she married his grandson, Charles Francis. Charles is the richest man. At the beginning, he thought this girl was a gold digger, so he hid his true identity. As they lived together, their feelings grew deeper. But his lie gradually became a time bomb, and his childhood sweetheart also came back. Will Charles and Corrie get a happy ending?