This world unlike the normal one piece world, where people instead of using haki and devil fruits they use magic for their combat. Eustass Kidd is a guild leader of the Kidd Guild. He's quite the rude, pridefull, and ruthless person you've ever met. He's really strong and the type of fighter to relay on his strength, not by magic. His guild are also really famous for defeating strong world boss and being a great mechanics. He always thought you're a weak adventurer, but he's definitely wrong.