My CEO Ex-husband Wants To Remarry Me - Chapter 3 - This Is My Business Card

Xiao Yu, who was a student from modern Earth, accidentally transports to another world and becomes the lord of a territory. Facing an unfavorable situation, he vows to take back his family business, build his new territory, kill all of those who covet his wealth, and dominate the world!

- Description from Novelupdates

Kieran was just an ordinary part-timer — a high school dropout who had also given up on boxing. With no parents and no real family, he survived by working his ass off every day. He was raised by a man he believed to be his father, but later discovered he wasn't — though the man passed away before the truth could fully sink in. What Kieran didn’t know was that he was actually the sole heir to a powerful business empire, the hidden son of a wealthy tycoon.

Chu Sihan, the county magistrate of Xuan Yue Country, is an exceptionally handsome prodigy who had risen to fame since he was a child. However, the National Preceptor prophesies that he would not live to the age of thirty, unless he marries the Lu Family’s daughter from Liu Yue Village.

Chi Yue had never thought that the man she provoked while drunk would bring disaster upon her; if possible, she would rather have never met him at all.—“The day I'm released from my sentence, I'll marry you.”Chi Yue, dressed in a red dress, smiled seductively, “Fine, as long as you have the heart to send me there, as long as you can marry me on that day.”He personally had her incarcerated; the day he was released, all he received was her urn.