One Piece : Dungeon Island

Grand Line, Year 1522 A Mysterious Island Appears in the Sea Around Sabaody. In the center of the island stands a small building that has the words "Guild" above the entrance with 2 portals on the right and left sides of the building. The Portal Leads To A Place Called Dungeon. The Dungeon Itself Is A Vast Place With Abundant Resources Desired By Many People. With the Discovery of Dungeons Many People Start Exploring Into Dungeons To Get What They Want. Pirate. Yonkou. Marine. Revolutionary Army. World Government. Each Party Competes To Conquer The Dungeon. Follow Their Adventures In Exploring Dungeons. ===== COVER IS NOT MINE. THIS IS JUST A FANFICTION STORY CREATED BY ONE PIECE MANGA FANS. I HAVE NO AUTHORITY IN THE ONE PIECE STORY, EVERYTHING BELONGS TO EIICHIRO ODA AS A ONE PIECE MANGAKA. English is not my main language, if there is a wrong word, please understand.