Strongest Mage Fighter

In 2025 A sudden light beam strikes the Earth causing the appearance of dungeons and monster. As humanity was on the brink of destruction a mystical being appears and grants the power of magic and says "you who posses the power of magic must protect your world and give births to strongest mage fighters as greater danger is about to fall on your world" and after that it disappears. As humans begins to annihilate the monsters,it took years to bring everything to normal. In this new world full of magic and monsters. A boy named Ducan who is around 17 becomes an E ranked hunter to protect his family from poverty. As his journey continues he is unaware of what might happens to him in future..