I Became a Stepmother in the 1980s

Nora Seth woke up to find herself time-traveled to the 80s. Not only was she a fake heiress kicked out of the house, but she also had to marry a divorced old man who had two children on behalf of the real heiress. What? Becoming a mom without the delivery pain? Hooray! She decisively chose to marry him. It turned out her husband was a tall and handsome man who kept giving her money. When facing relatives' harassment, real heiress's ridicule, and foster parents' scolding, she counterattacked with no mercy! Her manners were saved for decent people only!