Man in the Pirate World, Build the Strongest Marine Branch

The Eighteenth Branch in the East Blue...This is the most peculiar Marine branch, built in the East Blue, which is known as the weakest sea, yet it is even more magnificent than the headquarters.The Paramount War actually took place in a branch?A branch prison replaced Impel Down?The East Blue has even entered an era without pirates?......Soon everyone realized that, unconsciously, even the Marine headquarters was about to lose its meaning!