In a world called Ephinea, civilization flourishes thanks to the substance "Eleth", which is found in a material called "Crius." In this world, three kingdoms, Windor, Loss and Fendt, fight for dominance. In the distant Windor city of Lhant, the eldest son of Baron Aston, a spirited and naive boy named Asbel Lhant, enjoys the carefree days of his youth with his childhood friends and inseparable comrades. However, something happens that makes Asbel determined to become stronger and so he decides to become a knight in the capital of the kingdom.
Seven years have passed. Asbel is 18 years old and aspires to become a full-fledged knight. However, he is forced to give up his dreams when his father, Aston, dies. He cannot escape the duty to succeed as the new Baron of Lhant.