Gambling Den's Master Clan

Once brilliant teenage detective Shinichi Kudo was given a poison that reverted him to a 4-year-old. He's adopted the pseudonym Conan Edogawa so no one (save for an eccentric inventor) will know. Now he's got to solve a series of bombings before his loved ones become victims. Who is this madman and why is he doing this? Only the young genius can save the day but will even he be up to the task?

The Isle of Koumi, a beautiful island in the Pacific Ocean. On the island, people pass an old legend down from generation to generation that there was the Seabed Palace, an ancient ruin at the bottom of the sea, where the treasure of female pirates Anne Bonny and Mary Reed was left. When Conan and his friends visit Koumi while on vacation, they meet some suspicious treasure hunters.

Fifteen years ago in a barren stretch of the Pacific, a cruise ship collided with an iceberg and was lost at sea. More than a decade later, Hideto Yashiro—a ship engineer—died in a fatal car accident. The unlikely connection between these events only comes to light on the luxury liner St. Aphrodite during her maiden voyage. Aboard it on a much needed vacation, Kogorou Mouri, his daughter Ran, Conan Edogawa, and the Detective Boys enjoy a trip provided by Sonoko Suzuki's family. But their fun is soon cut short when a game of hide-and-seek leads to Sonoko's disappearance.

Naruto Uzumaki, Kakashi Hatake, Sakura Haruno, and Rock Lee are assigned to protect the prince of the Land of the Moon, Michiru, during his world trip; other escorts had been hired, but quit due to being treated poorly. The Land of the Moon is a very wealthy nation, so Michiru tends to buy whatever he wants, and has a very materialistic worldview. His Hikaru, also acts in much the same manner.

Conan tries to track down Kaito Kid, who supposedly steals a replica of one of Van Gogh's Sunflowers paintings during an auction.