Nothing deep and meaningful here. It's just a light-hearted show about how others expectations are hard to overcome. People see what they want to see and sometimes that can lead to insane hijinks.
A herbivore dragon somehow had a myth form around him of being some ancient powerful general of the demon king. (He gets beaten up by rabbits.) In order to placate a girl who keeps insisting on being sacrificed to him, he spins a story and gets basically trapped with a new follower/disciple, who has ABSOLUTE faith that he is the ancient evil dragon, and that her subsequent over-powerdness comes from him. Hilarity ensues.
There's no hidden meanings, no deep and buried sub-plots, just situational comedy, straight man remarks (from the dragon) and constant misinterpretation of actions.
If you're looking for deep and dark this isn't for you, but if you're looking for a series of 10-12 minute fun time-killers than this is perfect. It's not trying to be anything it's not, and just does a good job being exactly what it is.
Good for all ages.