Because of a mishap in the Null Void with an old enemy and a dimensional portal generator, Ben is sent to a world closely mirroring his own...only with angels, devils, fallen angels and yokai hiding in plain sight from the rest of the world. Having been thrust into a world full of mythological beings from one full of alien beings, how will our favorite hero deal with it?

What would happen if after sealing Trihexa, a change occurred in the everyday life of Issei? A change that will completely break him, a change that will put him into a new path, a change that would force the entire supernatural world to take him seriously? A change that will affect everyone, and everything in the world...