Become Naruto Uzumaki's Brother at the Beginning

He was reincarnated as Naruto's brother, why is there something wrong in the plot? There seems to be no such person in the original world! No matter what, let's quickly learn some forbidden skills to protect ourselves. What? Most forbidden spells cost lives. After using it, it is either half dead or dead. Masato said that he has a subhuman physique and will not be afraid no matter what he does. I am not afraid that the forbidden arts are too deadly, but I am afraid that there are not enough forbidden arts. Let's start with the Eight Gates of Dunjia. Learn the best forbidden skills and commit a big death. … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.