Peerless Mercenary

In the 21st century, the young people, who have crossed the different world and become the eldest young master of the family, have turned from waste wood to super genius. He's a genius for equalling the five empires and surpassing them. He completed the task of bandits, killed the king of beasts, and even accepted two powerful holy beasts.When the family is in danger, we will resolutely fight. No matter the powerful family or the imperial family, as long as it is the enemy, it will be inexcusable.The Japanese fire mercenary regiment led by him was called the sacred mercenary regiment, leaving endless legends.