Lucifer, known in the original Japanese as Satan, is the great king of the demons and the ruler of the demon village in the world of Sand Land. He is the father of the demon prince Beelzebub and Lilith, and the grandfather of Ann. Lucifer is depicted as a mature, imposing figure with short black hair, black eyes, and pointed elf ears. Despite his fearsome title, he does not display hostility toward humans and is often shown as complacent and easily amused by human behavior. His personality is marked by a detached, almost disinterested demeanor; he is not actively involved in the events of the story but serves as a background authority figure. When Sheriff Rao first approaches the demon village seeking aid, Lucifer defers to his son Beelzebub, who agrees to help out of boredom. Lucifer grants Beelzebub permission to join the quest but sets a characteristic condition: the prince may only play the video games Rao gave him for one hour a day on school nights, displaying a mundane, fatherly concern for discipline. This brief interaction reveals much of his role as a distant but responsible parent. His upbringing of Beelzebub is implied to be the foundation for the prince’s sense of justice and willingness to cooperate with humans, as Beelzebub’s actions throughout the series reflect the values instilled by Lucifer. Lucifer’s motivations are largely passive—he oversees the welfare of his demon subjects and permits his son’s adventure without direct interference. He does not join the journey or engage in combat, and his notable abilities are not showcased in the series. His role is primarily that of a supporting figure whose influence is felt through his son’s choices. Key relationships include his children Beelzebub and Lilith, and his granddaughter Ann, though he shares little screen time with them. Throughout Sand Land: The Series, Lucifer remains a static character; he does not undergo development or change, serving instead as a constant anchor in the demon community. His presence reinforces the theme of generational legacy and the subtle impact of a parent’s guidance on a hero’s path.