Starting from Uchiha Obito

I am a time traveler, traveling to a post-apocalyptic world similar to the modern world. After experiencing the apocalypse, the humans here have adapted to the changes in the world and regained their footing, but there is still a long way to go to restore their former dominant position. Of course, that was in the past. Now that I am here, everything is different, because I have another name - Uchiha Obito. ...