Elizabeth had finally done it. She had killed Erebus, slain it in a world where it was tangible, mortal, vulnerable. Unfortunately, the act seemed to have come with a pesky title, and now gods and shady organizations were showing up on her doorstep when all she wants to do is live with her loved one in peace. (Minor AU)

Six years later, the Investigation Team enters as Godou's high school teachers. Famous teachers. Again, very famous. Slight AU to both fandoms.