Naruto: Become Uchiha Madara’s mobile health pack

Introduction: [Not cool + slow-burning + heartthrob + dual male protagonists + game system + crazy criticism of yandere + no female protagonist + dark side] Demining: some individuals have been changed, in order to serve the story, it is different from the original work The place is based on the author's personal setting, and he doesn't like to run fast.The young Kamui traveled to the world of Naruto due to an accident and became Uchiha Madara's best friend. As a hybrid of Uchiha and Uzumaki, he was born weak and sickly. Only his chakra was different from others. In order to protect the most promising one, he became I got the mobile blood pack from my good brother Uchiha Madara.Regarding this, Shenwei was speechless. If you want to travel, just travel. Why did you end up traveling through an unlucky person?It was clearly the Warring States Period, so why did he get a sadistic script at the beginning?If you send him to the Hyuga family as a hostage, then it's not too much for him to learn some chakra meridian acupoint identification and soft fist, right? ...