Official AU name is "A RED SCARF".
Asriel & Chara <> Sans & Papyrus
Toriel & Asgore <> Alphys & Undyne
Annoying Dog (Toby) & Temmie <> Napstablook (Blooky) & Mettaton

A Way Different Underswap ~ A RED SCARF

Once upon a time
HUMANS and MONSTERS were best friends.

001. Once Upon a Time

Name your bravest hero!
PAPYRU

That’s a really BRAVE name!!!

002. Start Menu

* sup.
* don’t be confused.
* indeed i’m a talking rock.

003. the rock.

* Ohmigoodness!!!
* Oh.
* My.
* God.
* Are you a h-human?
* What am I d-doing?
* Y-you are obviously a h-human!