This Devil Is Extremely Abstract!

Li Sheng, who accidentally traveled to the Demon Realm, originally wanted to bring a few monster girls to the human world after making enough money in the Demon Realm. But things went counterproductive, and suddenly one day he was chosen as the new Demon King. But after hearing that the Demon King could not marry a wife for the rest of his life, Li Sheng decided: For the sake of the Monster Mother, he would not become the Demon King!