A middle-aged air dragon. His entire body is covered in bluish-purple fur and feathers. Despite the fact that Lou is unable to fly, he has two wings on his back. His front legs and back legs have a gradient of a darker color. The blue fur on his head resembles blue, shaggy hair. The fur on the tip of his tail is the same color. There are several hairs on his face that make up his mustache and goatee.

Lou wears glasses on his head, which he usually pushes up and puts on his eyes