Link, a naval history enthusiast, accidentally traveled to a different world of pirates, sea monsters and mysterious powers - the "Blue Sea".
The beginning is hell mode: a handyman boy who is about to be thrown out of the boat and fed to the fishes.
In a desperate situation, he awakened his unique talent [Logbook].
[Hull: Sea Serpent, durability is 78%, there are hidden cracks in the keel, and it is expected to disintegrate in a storm in 72 hours.
[Target: One-eyed Dragon, Status: Angry, Weakness: Old Injury on Left Leg.
[Unknown sea chart found, analyzing... 10%... The route leading to the 'Tear of the Mermaid' was found.
From an unknown person to the feared "Ghost Captain";
From a broken ship to an invincible fleet across the seven seas;
When the navies of the four empires block the sea route, when the flags of the Seven Pirate Dukes cover the sky, and when the ancient god of the deep sea whispers... Link and his "Ghost" will use artillery and wisdom to open up a legendary route to the Throne of the Abyss in this magnificent blue sea!