MLP/Undertale/Undertale RED

by LunarSoldier77

Rating: teen
Tags: Human, Alternate Universe, Comedy, Random, Adventure, Crossover
Length: 1008

Celestia, Luna, and Cadence meet a human, a goat, and a young royal guard from another world.

When Frisk, Asriel, and their new royal guard friend Red fall down the abyss at the garbage dump, they somehow end up in Equestria and meet the princesses. Hilarity ensues. (rated teen because Red swears occasionally)

Published 1970-01-01 00:00:00 UTC
Last updated 2016-06-26 17:40:01 UTC

Falling Down

"Uh, Frisk? I don't think this was the best idea......." Red said nervously to Frisk as they stared over the edge of the abyss at the garbage dump in waterfall.

"Uh, I'm gonna have to agree with Red here, this is kinda dangerous." Asriel agreed.

Frisk just kept staring over the edge. I growing feeling of dread hung over Red and Asriel. Frisk then backed away from the edge and asked the two what they thought was over the edge.

"I dunno, probably certain death," Red joked.

"I actually think that we might get hurt if we stay here, c'mon guys, we can go explore somewhere else that's, less dangerous," Asriel suggested.

Frisk turned back to the abyss and told the two monsters that they saw a light at the end. Red and Asriel had been walking away, but this caught their attention.

"What do you think's in there?" Asriel asked.

Frisk shrugged, and began to back away again, but then, a wave washed over them, pushing all three of them over the edge.

All anyone could hear was....

"FRISK YOU LITTLE SH*T! YOU ARE SO F*CKING DEAD!"

Meeting the princesses

"Yes, about that, can you send Princess Cadence a letter asking that she come to Canterlot? Thank you," Princess Celestia asked a Royal Guard.

Just then, a torrent of water gushed through the roof, and three children, all looking rather unusual, tumbled out. The oldest was wearing a red hooded cape, and had a sword at their belt, the next somewhat resembled a goat and was wearing a green and yellow striped shirt. But the last more resembled what Celestia's student, Twilight Sparkle, had described the creatures from when she went through that portal in the crystal empire looking like. Standing on two legs and having these things Twilight called "hands". Now that Celestia thought about it, they all had these "hands" and the oldest had now drawn their sword and was now gripping it in their "hand".

"Where are we?!" Red asked looking at Celestia and Luna with confusion. "Who are you? Wha-What are you?"

"I am Princess Celestia, and this is my sister Luna, you are in the kingdom of Equestria, probably very far from where you came from."

"GODDAMMIT!!!!!!!!!!!!"

Getting home

"Alright, so I think I can just teleport you guys back home." Twilight suggested.

"Great!" Asriel agreed excitedly.

"When we get there, can I stay a while and study your world?" Twilight asked.

"Yeah! We'll introduce you to my father, the king, and you can stay for as long as you want!" Asriel said excitedly.

"Alright, let's go then!" Twilight said.

Soon enough, everyone was teleported into the kingdom of monsters, only to find it littered with piles of dust. Twilight wasn't phased by this and began to look around.

"It's started." Red mumbled, inspecting the piles of dust.

"What's started?" Twilight asked.

"The second war between Humans and Monsters......"

The Second War (with ponies)

"The humans have invaded the underground, there's, no point in stopping now." Red said, picking up a pile of dust.

"Where did all this dust come from?" Twilight asked.

"Its monster dust, when monsters die, they turn to dust." Red explained.

"So that means..." Twilight looked over the hundreds and hundreds of dust piles and realized just how cruel the humans were.

"Yeah, hundreds are dead."

"Can we go to New Home to see my dad?" Asriel asked Red.

"Yeah, let's get outta Snowdin, and go see King Asgore." Red suggested.

Twilight agreed, and they began to walk out of Snowdin. But behind them, they heard a faint voice calling for their parents. Red and Asriel's hearts dropped into their stomachs as they turned around and saw the Monster Kid, looking around the rubble that used to be Grillby's and calling for his parents. Undyne, the captain of the royal guard, was Kid's hero, and Red was with Undyne very often, so Monster Kid knew her too. Red walked over to Monster Kid and explained that they were all going to see King Asgore, and surely he would help find Kid's parents. Kid agreed, and they walked down the road, all together, heading to New Home.

Finding a way out

"So you guys are ponies, this is your kingdom, and we somehow got here by falling down a hole at the garbage dump???" Red asked.

"Yes," Celestia replied.

"So how do we get back?" Asriel asked Celestia.

"We will see if my student, Twilight Sparkle, can use magic to get you back home."

"Thank you Princess Celestia. We should really be trying to find this "Twilight Sparkle"." Red said politely.

"Goodbye children," Princess Celestia waved.

Just as they were about to leave, Cadence walked through the door.

"Princess Celestia, I saw your letter asking for me to come to Canterlot." Princess Cadence said, before noticing the others.

"Celestia, Who are these creatures?" Cadence asked.

"The taller ones are "Monsters" and the small one is a "human" Celestia replied.

"But what are they doing here?" Cadence asked

"They fell down a hole back in their world, and they ended up here." Celestia replied. "Alright children, it is time for you to meet my student, Twilight Sparkle."

Celestia wrote a quick letter asking Twilight to come to Canterlot at once, as there were some people who needed her help. It arrived in Ponyville fairly quickly, as it traveled through Spike the dragon. Quick as a flash, Twilight teleported right inside of Canterlot Castle, in the same room where everyone was standing.

"I'm here Princess Celestia, are these creatures.......You look exactly like what I saw when I went through that portal." Twilight said, dumbfounded.

"Yes, they have come from a similar world, where the goat, didn't you say your name was Asriel? And the one in the cape, Red right? Where their kind is trapped underground, by the humans, which is what the tiny one is." Celestia explained.

"Let me guess, they need to get back to their world?" Twilight asked.

"Exactly," Celestia replied.