How Come I, the Duke of the Empire, Have a Demon King Wife?

[Single heroine][Funny][Counter-routine][Light novel][Growth] There are many human kingdoms in the Otihuacan continent, among which the Dosores Empire is the most powerful country. Duke Lorani, who was recently promoted to the honorary duke of the Dosores Empire, is the most popular. When the reporter interviewed Duke Loranni, he asked the following questions. Reporter: "May I ask, Duke Loranni, what is the secret of your success?" Loranne: "It's very simple. You just need to have the following four points." Reporter: "Can you tell me clearly what the four points are?" Lorani: "First, advanced technology. I happen to be one of the few ninth-level alchemists in the mainland." The reporter nodded heavily. Lorani: "Second, sufficient funds. The most famous business enterprise in Sintra happens to be under my name." The reporter expressed his understanding. Lorani: "Third, strong strength. I am honored to have studied at the Central Academy of Magic in the Giffin Federation." The reporter suddenly realized: "What about the fourth point?" Loranne: "Fourth, of course, is a strong background." Reporter: "There are rumors that you were just a poor boy from the slums." Loranne: "But what they don't know is that I have a devil wife." Reporter:! ! ! Lorani smiled slightly: "Just kidding." The next day, "The Four Secrets of Duke Loranni's Success" made the headlines in the imperial capital's newspapers.