Have you seen the film Detective Conan: The Million-dollar Pentagram (Meitantei Conan Hyakumandoru no Michishirube; 名探偵コナン 100万ドルの五稜星)? I have already watched it twice. A shocking fact is revealed at the very end, so please do go and see it if you can!
Now, the setting for this latest Detective Conan movie is Hakodate (函館), Hokkaido. In particular, Goryokaku (五稜郭) serves as a crucial location. Come to think of it, why is Goryokaku shaped like a star in the first place?
The Reason Why Goryokaku is Star-Shaped
The greatest advantage of the Goryokaku fortress being star-shaped is the ability to eliminate ‘blind spots’ during an enemy attack.
For instance, suppose an enemy attempting to capture the fortification is attacking from Point A. In this scenario, the enemy would be targeted on their left flank by the battery at Point B, and on their right flank by the battery at Point E. If each point from A to E were circular, a tiny blind spot would be created at the areas touching each circle.
This construction method is said to have originated in Italy, and its remains can still be seen across various parts of Europe today.
This article is translated from https://intojapanwaraku.com/rock/culture-rock/246281/
