Metallica Tribe are an ancient legendary tribe of metal artisans. They are known as the origin of Minea. It started from a single tribe. The tribe possed a speical ability called "Mallet Hand". It is said the hand can transform any metals at will. The tribe was once thought doesn't exist. Luca the main character belongs to this tribe.
It is revealed that Luca is a memember of the tribe during his battle with Ward.
The tribe was believed to be demolished in the ancient Great War between nations. Only one descendant surive and they are Luca and Balk.