According to the novel information provided, there were a few novels that mentioned the Great Demon King having a wife: " The Unfinished Chapter of the Phoenix Dance "," The Demon King's Little Wife's Black Lotus Strategy "," Acting Coquettishly to the Pathological Demon King "," The Rest of My Life Became Crazy Because of You "," Mr. Li secretly likes me "," After Rebirth, I Became the Great Demon King's Treasure ", and " The Cold Rejection of the Medical Concubine: The Wargod King Wants to Repay His Grace ". In these novels, the devil had one or more wives. As for the details of each novel, it was inconvenient to disclose them. I hope you can read these novels or choose one of them. I hope you like my recommendation.😘