the king devil: Issei Lucifer

Just like his brother, issei Livan Lucifer is the son of the yondaime maou Lucifer and Lilith the mother of demons, not only that, issei was the first to be born after Rizevim livan Lucifer followed him. Issei had a real power to fear, being Satan for his exaggerated strength, but the son of Lucifer, he was not twisted-minded like Rizevim livan Lucifer. What awaits the son of the yondaime maou Lucifer ... ???