Ending up in a new world by accident, Naruto's mere presence has shifted the flow of events. So Naruto is sent to Kuoh Academy to ensure peace will eventually be reached in this new world. Can he ensure peace in a second world? He'll sure as hell try,
Lelouch vi Britannia or also known as Zero had many Contracts during his living years that he made, but this one was different because it was a contract with a devil.
Now he is in a completely different world where devils, Angels, and Fallen Angels live, but they will also know the the name Zero now.