Mughi is a genetically engineered creature who serves as a companion and assistant to Kei and Yuri, the two trouble consultants known as the Lovely Angels. His name is an acronym that has been given as Military Utility Genetic Hyper Intelligence, Military Unit of Genetic Higher Intelligence, or Military Unit Generating Human Intelligence, depending on the source material. In the anime television series and original video animations, Mughi appears as a large, brown, catlike creature with a lazy disposition. He is often described as resembling a cross between a bear and a cat, covered in thick fur, and is generally treated by Kei and Yuri as a beloved pet. This depiction contrasts sharply with his original novel appearance, where he is a sleek, black panther-like being with tentacles extending from his shoulder blades, possessing formidable combat abilities and a fierce temperament. In the anime, Mughi's tentacles appear only in the first episode and are never seen again. Mughi possesses human-level intelligence and is capable of operating the controls of the Lovely Angel, the team's spaceship. He frequently acts as a co-pilot or gunner, providing technical support when Kei and Yuri are on planetary missions. He can fly the ship for short periods and manage its various systems upon request. Although he cannot speak, he communicates effectively with the small robot NAMMO during the television series. Despite his advanced intellect, Mughi is notably lazy and would much rather find a quiet corner to sleep than participate actively in missions. He also has a pronounced fear of mice. Created by the scientist Dr. Q, Mughi was originally intended to resemble a huge panther, but the final result was a much more docile and endearing creature. In the anime continuity, he is a specifically designed genetic experiment made for the Lovely Angels, whereas in the original novels he is the last member of a nearly extinct species. His role in the story is primarily that of a support character, remaining aboard the Lovely Angel while Kei and Yuri handle field assignments. He provides comic relief through his laziness and phobias, but he also proves crucial at key moments, such as piloting the ship in to deliver equipment or provide air support when the pair find themselves in danger. His development across the series is minimal, as he remains a consistent presence defined by his intelligence, his reluctance to exert effort, and his unwavering loyalty to Kei and Yuri. His relationships with the two are affectionate and informal: they call him their cute pet, and he in turn offers them reliable, if sometimes begrudging, technical assistance. His ability to interface with and control the Lovely Angel's systems makes him an indispensable, if understated, member of the team.