A monster prince moves to the human world and the joke is that he's the most normal one in the room. The show doesn't care about plot coherence, it cares about the speed of the gag, the absurdity of what a demon prince finds confusing about human life, and whether you'll laugh at the same weird stuff twice. Fifty episodes of pure cartoon logic, where the real comedy lives in the gap between how seriously Kaibutsu-kun takes everything and how much the world around him refuses to make sense.

Kaibutsu-kun is the prince of Kaibutsu Land, and he is expected to become its King one day. As part of his training for the throne, he leaves his home and travels to the human world. The 1968 television series runs 49 episodes and blends comedy with horror, pairing spooky elements with lighthearted humor.