Undertale AU

You know what is AU? (Alternate Universe)
Well Look this AU of Undertale

Its StoryShift
In this AU
Sans is Chara
Asriel is Papyrus
Papyrus is Toriel
Sans is Asgore
Toriel is Undyne
Asgore is Alphys
Alphys is Napstablook
Napstablook is Flowey
Undyne is Mettaton
Mettaton is Chara