In this product, in addition to designing the character of the popular anime "Detective Conan" on the package, "Mystery Solving" that challenges "Challenge from Conan" is prepared as a familiar "winning lottery" in the "Home Lumber" series. .. The mechanism is to unravel the "challenge letter" written on the inside of the package based on the hint written on the branding iron of the stick. If you solve this mystery and apply, the DVD of the movie "Detective Conan: Detective of the Sea" released this spring will win 250 people by lottery.