A Hero's Brother

Eron K. Arisato a boy who lived alone with his little brother Kenji K. Arisato, After 6 weeks since the death of their parents by the hands of their Uncle Alexis Mason. He took Kenji to be his 'successor' for his throne. Six weeks since the death of his parents and the 'adoption'of his little brother Eron was alone yet he was taken by his Uncle Rowan for that he trained, trained to become stronger to rescue his brother by the hands of Alexis. Rowan and Eron leave from his hometown in order to be strong.....After 5 years of training, he achieves his training so that he can fight back to the demons where he left in 5 years since the death and lost of his family.

Will he achieve his goal to save his brother? How will he fight back from his demons? Did he avenge his parents'death?  And see how he becomes the strongest man on earth.