(I don't know if the name is already taken...if it is let me know and I will change it)
in this story, the battel between the humans and Monsters is still going on. and there are a group of Rebel's who believe the Monsters are good and are helping them by sabotaging the Anti Monster group Rallies, they find out and send Frisk in to the Rebel's group to sabotage them but she ends up helping them instead...
also, sans is 16 in this cause I drew his hand to small and was already done when I noticed it... he is small for his sizes...
they all have secret names as well, so if someone gets captured the others are still safe:
Sans = Eon
Papyrus = sterling
Frisk = Era
Chara = Atrocities
Asriel = Enormities
Gaster = vacuous
Asgore = covet
Toriel = hope
Undyne = Antipathy
Alphys = Fraught
and yes, these all have meanings...ya get a shout out if ya can guess it. (I will edit this and put your name at the bottom saying who guessed what the meanings are...) (no cheating!)