The Grandcaptain of "Granblue", bands of undead pirates. In order to defeat the resurrected "Aqua Force" who invaded his territory, he rallied his subordinates over the world and reanimated new deads from the bottom of seas, waiting a chance of uprising. However, when they have finished the preparations, the invaders known as "Link Joker" came to erase Cray. To the pirates whose motto is "to plunder", the invaders who aim for the "annilhilation of everything" are the biggest harm---With the decision of commodores and Grandcaptain "Nightmist", "Granblue" shifted their hostilities from the marines to "Link Joker". Taking this chance, "Nightmist" made himself known as "Lord of the Seven Seas", denoting his leadership over the entire ocean.
In response to the fools who repeat invasions without a reason beside invasion itself, the undead step forward to teach them a lesson, named "Pirate-style marauds". That day, shocking battlecries from the dark seabeds reached the land.