The Flip Side - An Undertale Fan Fiction

This is an undertale fanfic about Chara and Frisk and is set 11 years after Frisk left the underground. I leave you with one thought: What if Frisk were the villain?

Disclaimer: None of the characters are created by me and all rights to the characters/setting of the story go to Toby Fox. The fan art featured In this story is also not mine and all rights go to the creators of the art. This fan fiction is in an AU with a few differences.

-Asgore is still alive
-Frisk didn't get adopted by Toriel and tried to live with other humans in the normal world for the past
-Asgore and Toriel are together
-Asriel and Flowey are separate monsters -Asriel is 18 years old
-Flowey is millions of years old and has no age
-Papyrus and Mettaton are together
-Undyne and Alphys are together
-Mettaton looks like Mettaton EX normally
-W.D. Gaster is father of Sans and Papyrus
-Asgore and Toriel are King and Queen of underground and live in the castle
-Antagonist is...Read to find out
-I added in 2 humans to the AU named Ava and Alex that are mentioned throughout the story

Abilities of characters:

Sans: Teleport, summon gaster blasters, bone attacks, excessive use of puns

W.D. Gaster: Heal, teleport, perform magical attacks, summon gaster blasters

Undyne: Laser spears, Green attack, arrow attack

Alphys: Not much TBH XD

Papyrus: Bone attacks, Blue attack, Dating/Dating Fight, Expert Spaghetti making

Mettaton: All attacks performed by MTT Neo or MTT EX

Chara: Teleport, Teleporting objects, Telekinesis (only able to be used on objects)