Water 7, the outer harbor of Dock One.
Rows of silver-gray heavy alloy pillars now stood along both sides of the once-shimmering waterway.
Hundreds of shirtless shipwrights chanted as they drove special rails infused with seastone particles into the foundations.
The rails wound along the coastline, enclosing the island's entire central district.
"Hey! Have you tightened the anchor bolts over at Gate Two?"
With a hard hat on his head and a thick stack of blueprints clenched in his hand, Iceburg shouted into his communicator.
"The energy circuit blueprints Tony Stark left behind allow no more than half a millimeter of deviation."
"If electricity leaks at the rail joints, the entire coastal defense line will go down!"
On an elevated work platform nearby, Franky wore nothing but his signature red briefs.
He held a welding torch between his teeth as his massive metal right arm sprayed dazzling blue arcs.
"Relax, Iceburg!"
"This week, I'm super dependable!"
"Once we connect these seastone rails to the underground reactor, Water 7 will be a floating fortress!"
Iceburg rubbed his temples and shot him an exasperated look.
"Stop striking those weird poses."
"The Eclipse's main fleet is over in Wano Country. We've only got three thousand mass-produced mechs guarding this place."
"The World Government took a huge loss. There's no way they'll let it slide."
Franky hopped lightly off the work platform, landing with a dull metallic clang.
"What's there to be scared of?"
"Before Tony left, he handed full control of the Anti-World Government Armor over to me."
"Besides, they can open a portal from Wano Country anytime."
"If the Navy dares show up, I'll give them a taste of a thirty-meter mech!"
Before he had even finished speaking.
The twelve air raid warning towers looming over the harbor suddenly lit up red.