Substitute Bride's Husband Is An Invisible Rich Man

Mo Yan was an illegitimate child of a rich family and was arranged by her mother to take the place of her sister in marriage to a poor man in order to fulfill the marriage contract set by the previous generation, allowing the Mo family to get their hands on that substantial dowry.
Her sister said. "How can I marry such a vagrant? You, on the other hand, are much more suitable!
Her father said. "Yanyan, as long as you are willing to marry him on your sister's behalf, I'll give you a sum which you can use to pay for your mother's medical fees."
Her stepmother said. "You're nothing but a mutt, and you should be grateful for being the second young lady of the Mo family. Know your place!"
Just like that Mo Yan married a man she had never met before in her sister, Mo Lian's place. He was poor and destitute and stayed in a dilapidated tiled house. It was said that he was a local gangster.
On the night of their wedding, Mo Yan said, "You are my husband; you can do anything to me.
He let her bathe inside an old bathroom with no lock and then pressed his body against hers. "It is late, let's go to bed?"
Later on, her husband transformed and became a mysterious yet powerful rich person. Mo Yan screamed, "Impossible!"
Soon, she found out that her husband was the same as her, marrying in place of another! This is the story of a wife and a husband marrying in place of someone else.