Anime Like Case Closed: Jolly Roger in the Deep Azure
The treasure hunt setup gives Conan permission to do what the series does best: watch him solve a problem while everyone else runs around having fun. The action sequences move like they actually cost money to animate. The mystery itself lands soft, it's not why you're here, but the movie knows that, and spends its runtime on the pleasure of watching a kid outwit grown men on an island instead of sweating whether the final reveal will stick the landing. The tone never pretends to be heavier than it is. For franchise fans, this is beach episode energy with actual stakes, not filler masquerading as plot. It's the weakest Detective Conan film made, but it's still Detective Conan doing what it does.
SYNOPSIS
Conan and his friends arrive at Koumi Island for a relaxing vacation, but the peaceful getaway unravels when they encounter a group of treasure hunters scouring the area. The island's residents speak of an ancient legend: somewhere in the ocean depths lies the Seabed Palace, a mythical ruin said to contain the lost wealth of Anne Bonny and Mary Read, the notorious female pirates from three centuries past. As Conan investigates the hunters' true intentions, he realizes their presence on the island is far from coincidental. Multiple parties converge on Koumi Island, each pursuing the legendary treasure for their own reasons, and the mystery deepens when people begin turning up dead. What starts as an adventurous treasure hunt transforms into a dangerous puzzle where Conan must separate truth from legend while uncovering who among the hunters is willing to kill for fortune. The combination of historical intrigue, oceanic atmosphere, and high-stakes mystery creates an adventure that rewards those drawn to crime-solving with a side of swashbuckling excitement.
