As The Aide of The Greatest Being

A 25 year-old young man died and reincarnated into another world which is called Ruthfold, a world of magic & swordmanship. Using the knowledge and experience from his old life, he has been called as a genius by everyone since he was a child. He thought he'll be going live this peaceful life forever by the side of his family and friends but... What'll happen to his life when he know the truth of this world?? What'll happen when he encounter unfortunate accident?? What'll happen when he meet that Greatest Being?? As the Aide of that Greatest Being,............. #This is my first time writing novel like this. So not only my skill, but I am also not very good at English sometimes. So, this is just a novel of good-for-nothing. But if you don't mind, please enjoy it..