Even though the monsters are forced back Underground, the humans were nice enough to connect their undernet to the internet...
1 year later...
In a currently closed restaurant, a bony hand clicks a record button on a laptop.
A small skeleton lets out a sigh and begins talking. "hey frisk...so, it's been a while. i'm not sure if you'll ever get this, but i just wanted to talk to you about what's happening, even if you probably don't want anything to do with me. king fluffybuns and toriel have reunited, and are now ruling over the underground together. they are have made a bunch of compromises that the underground has benefited from. it's probably for the best anyway. ever since... what happened on the surface. so, i know the plan of leaving here ain't happening any time soon. but even though people are heartbroken over losing their freedom again, and things are looking grim for our future, the royal's are trying their best not to let us give up hope. so, uh, hey...if we're not giving up down here, don't give up wherever you and grillby are, ok? it may take us 50 years. but we will get out of here. and we will be a lot nicer to the next humans that fall down here. that's a promise i'm gonna keep this time."
Suddenly a taller skeleton appeared next to the small and enthusiastically waved his hand. "GREETINGS FRISK AND OTHER HUMANS WHO MIGHT SEE THIS! I, THE GREAT PAPYRUS, AM NOW A LIFE COUCH! I HELP GIVE MONSTERS MOTIVATION AND ADVICE IN REAL LIFE, WHILE I DO THE SAME FOR HUMANS AND SURFACE MONSTERS ONLINE. IT'S SURPISNGLY A MUCH MORE FUFILLING JOB THEN BEING IN THE ROYAL GUARD. AND I'M HELPING UNDYNE WITH HER ANGER MANAGEMENT THERAPY! SHE'S BEEN GETTING BETTER EVERYDAY. SADLY...UNDYNE AND ALPHYS AREN'T A COUPLE ANYMORE, BUT THEY REMAIN GOOD FRIENDS."
A fish woman appeared behind the tall skeleton. "That's right punk! Romance is overrated anyway! All you really need in life to be happy is friends like this goofball!"
"PLEASE DON'T NOOGIE THE SKELETON!"
"Anyway, now that I'm no longer captain of the royal guard and the royal guard is no longer needed, I work as a self-defense trainer! It's pretty fun teaching others to protect themselves without magic! Did you know I can bench-press seven children?! Awesome, right! ... Hey. I'm sorry about everything that happened Underground. I was only doing my job, but... I could've handled some things better...I see the truth now... Guess I was the real punk in the end..."
A lizard walked up to the fish woman and put a yellow hand on her blue arm. "H-hey, Undyne? Are you okay...?"
"I'm fine. I think it's your turn to talk now, Alphys."
"U...uh, okay! Here I go. ...Um, hi...so I really don't like talking on the phone. I really don't know what to say. ... Hey, don't you think it be cute if Asgore and Toriel got back together? Uh, I mean, uh...I'm doing OK! And! Um! I'm trying to find new ways to help both monsters and humans! B-but I kinda have no idea what I'm doing. I'll figure it out eventually, though. The queen is a lot different from Asgore...she actually checks to see if I'm doing anything. She's really helped turn this place around! Though their new advisor makes me uncomfortable... Oh! Hey! Do you want to talk to...? ... Well, they say they're too busy."
The small skeleton laughed and said. "it's probably for the best, frisk. if they knew we are making a video for you, i wouldn't get my new laptop back for hours. maybe even days. be warned, they might appear in the next one. oh, whoops, this thing's almost out of batteries. so, hate to cut this short, but...good luck frisk, where ever you are, okay?"
"GOODBYE FRISK! HOPEFULLY NOT FOREVER!"
"See ya around, Frisky Warrior!"
"G-good...good...Eheheh...I hate goodbyes...Um, we'll see you again someday!... If you'd let us, of course."
"bye, kiddo."
Enjoy!