Is Reincarnation Strategy Difficult? I Have a Tongtian Belt!

Roja traveled to the world of National Samsara Tower, where only he knew the plot! Reason? "Minato Namikaze is not the protagonist? Then Orochimaru or the Third must be!" "There are zombies in the world of World War II? The boss must be Stray who deceived us!" "The world of Academy City is not an everyday superpower world? Hey, hey, Kuroko is not the protagonist?!" "Baki must be a big shot. He is a crew member of the Pirate King in this world. He also knows one of the Four Emperors. I want to join him!" … Not only does Roja know the plot that only he knows, but he also has a system plug-in that can set the relationship with people in the current world and the quality of the relationship. How to lose when flying dragon rides on the face? I! Babel belt! Results can be checked immediately!