Mushoku Tensei: Reincarnated as Rudeus's older twin brother

This is moved to the fanfic section!! This only a fanfiction about Mushoku Tensei. I don't own Mushoku Tensei(It's owned by its rightful author). English is not my main language This novel is about a boy who is adolescent boy who is a big fan of Mushoku Tensei. He was reading the novel when suddenly some delinquents took the book and put it in fire. The boy finally snapped and couldnt take it anymore and started lashing out on them, having the adrenaline while fighting them. In the end he gave them a beating and lie down exhausted. You could see his fist full of blood at the ground several fresh tooth. If somebody saw this they would say "monster". Suddenly he felt a sharp pain on his stomach. He saw a person full of bruises in the face and his hands holding a pocket knife in his stomach. He couldnt believed he will die this way. "I hope I'll get isekai'd like Rudeus. Id like to marry Roxy when I get there." suddenly he cried "Im asking for the impossible I might be crazy". Never did he know that his wish had been granted. Not only was he reincarnated he was also the twin older brother of Rudeus. [I dont own Mushoku Tensei, I created this fanfic just for fun]