Age: 35, Demon Gender: Male Birthday: February 14th Height: 182cm He is the lead teacher at Babyls and the homeroom teacher of the Misfit Class. Alongside Dantalion Dali, the head of the faculty, he is the second-in-command at Babyls and is delegated full authority in the Chairman'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 teachers at that level, making him and Balam the school's strongest assets. He holds significant influence, overseeing major school events such as freshman rank placement and classroom assignments. He appears to be a renowned demon throughout the Netherworld, not just the school. Kalego favors words containing the character for 'discipline' or 'solemnity' (solemn, quiet, purge). Accordingly, he possesses immense pride and is extremely strict with both himself and others, placing high importance on regulations. While he seems to look down on the students of the Misfit Class, they are indeed troublemakers with little remorse, necessitating his stern approach. Despite this, he understands each student in great detail and has authored high-quality educational texts. Though harsh and relentless, he takes great pride in being an educator and readily responds to legitimate requests from students. His convictions and sense of responsibility as a teacher are absolute. When evaluating or guiding students, he sets aside personal feelings—even for Iruma, whom he dislikes—to maintain strict professionalism. However, as long as it doesn't interfere with his educational principles, he occasionally lets his personal feelings slip for his own amusement. He is a tsundere.