Halfa in the AU's!

Do you know undertale? The AU? Do you know Danny Phantom?
Well..... this will be an interesting story.
A halfa in our world is an Undertale fans. He has the power of a half ghost but life can be boring. Until he found a new ability to travel Undertale and the AU's.
Lets see how the AU Sans or Papyrus react when they meet him as a human or ghost? 😬