On an island where spring never ends, somewhere in the South Seas, there lies a land of green forests, wide lakes, and tall mountains with deep roots—mountains that hold one of humanity's most precious treasures: diamonds. This island is called Malynera, and its ruler is only a child.
Patalliro the 8th, King of Malynera, is ten years old. From birth, everyone knew he was... unusual. He is a hyperactive boy, with flashes of genius, moments of thoughtless cruelty, and a talent for making bad puns out of anything. Smart, but still a child, he often does very stupid things.
Patalliro! is his story.
He lives in a world much like our own, but where the bizarre is commonplace. He stumbles into all kinds of trouble—from international terrorists to space aliens to accidental time travel. His first challenge as king is simply staying alive when a group called the International Diamond Syndicate decides it wants control of Malynera's diamond mines. This is how he meets Bancoran, assigned as his bodyguard during a trip to Britain, and also how they meet Maraich, one of the assassins sent by the IDS.
Patalliro is almost always accompanied by his army of Tamanegi—"Onions," so named because of their onion-shaped wigs. The Tamanegi all wear identical masks, wigs, and glasses, and are known only by numbers. They are Patalliro's protectors, but they protect the world from him just as much as they protect him from the world.