The story is about a young man name Yuusuke Takamine A.K.A the Dragon King. 3 years ago in the Kingdom of Avelon, the King's younger brother Mightus staged a coup d'etat to kill his own brother and seize control of the throne. After the King's death, Mightus became the new King of Avelon and created an Imperial Group known as the Black Empire. As time passed the people of Avelon were suffering by the Empire's tyranny, but when Yuusuke returned from his 3 year training, he began his epic journey to defeat the Black Empire and free all of Avelon.
