99 versions of Y/N and I'm not one

This is a story about the many versions of Y/N, and how one may delete them all. Monsters have been free from the underground for 3 years. Y/N was a 22 year old soon-to-be college graduate, with some rather skeletal roommates. Sadly, however their story will change forever when Y/N looks too far into the possibilities of Alternate Universes. In this tale there will be many questions from everyone, most may never be truly answered. So please, stick around and let us unravel the story of F/N M/N L/N.

Codes
Y/N - your name
F/N - first name
M/N - middle name
L/N - last name
F/C - favorite color
L/F/C - least favorite color
F/O - favorite outfit
F/F - favorite food
L/F/F - least favorite food
F/S - favorite song
S/N - siblings name ---
O/S/N - older siblings name --- May just be OC's!!!
Y/S/N - younger siblings name ---
O/C - own character
H/C - hair color
H/L - hair length
N/N - nickname
E/C - eye color
P.O.V - point of view
S/C - Soul color/skin color (Depends on context)
Disclaimer
I do not own Undertale or any of its AU's those belong to its creators, I only own Y/N, any OC's, and the plot.
The multiverse headcannon was inspired and based on Harrish6's own headcannon's and stories. I'd definitely recommend giving them a read. You can find them here on Wattpad or archiveofourown!