The Billionaire's Temporary Wife

On the day of his wedding, his bride; Sun ran way, and the bride’s stepsister; Cho was forced to take the place of her sister temporarily. The marriage was to last for six months or until the runaway bride comes back. Few days after the wedding, Cho was found to be pregnant. What will happen between the couple? i will kill the father of the child in the womb, and the father of my wife for giving me a pregnant woman for a wife. the groom threatened