The lead teacher at Babyls and the homeroom teacher of the Misfit Class. Along with Dantalion Dali, the head of the faculty, he is the second-in-command at Babyls and is delegated full authority in the chair's absence. It is later revealed that the Dantalion and Naberius families have served as teachers at Babyls for generations; specifically, the second son of the Naberius family inherits the role of the 'Guard Dog of Babyls' to protect the school. His rank is 8 (Cheth), one of only two such ranks among the teachers, making him and Balam the school's strongest forces. He holds significant influence, handling major school affairs such as rank determination for new students and classroom assignments. He appears to be a renowned demon throughout the Netherworld, not just the school. During home visits, all parents except Sullivan address him as 'Lord' Kalego, expressing respect and stating it is an honor for their children to be taught by him. He favors words containing the character for 'strict' or 'solemn' (Solemnity/Silence/Purge). Accordingly, he has immense pride, is extremely strict with both himself and others, and values discipline above all else. While he seems to look down on the Misfit Class students, they are indeed troublemakers who showed little remorse, forcing him to be harsh. Despite this, he understands each student in great detail and has even authored highly-regarded educational books. Though overall stern and relentless, he takes great pride in being an educator and readily responds to students' legitimate requests. Likes: Cacti, Music Dislikes: Noise, Lack of control, Self-paced people His familiar is Cerberion, a large three-headed wolf familiar that emits yellow electricity. However, he is currently harboring an obsession with Guest, a quiet student in the Misfit Class.