Nightmare World

by FandomPlays1234


Chapter 1: Meet Nexus

"Fandom, wake up cutie," cooed Asriel. Fandom groaned as he swatted away her paw in his sleep. Smiling, she gently poked him on the nose. Fandom slowly opened his eyes as he sat up. "Morning sleepy head," Fandom yawned and scratched his eyes as he looked over. Asriel slowly sat up not taking off her eyes on him.

"Ugh Asriel please you gotta stop waking me up," said Fandom touching his face.

"Well you DID look cute in your sleep," said Asriel.

"Please Asriel, stop talking as if I'm your significant other," said Fandom. "And are you planning to wash that T-shirt?" Asriel looked down at her white T-shirt she was wearing.

"Oh darling, this isn't from yesterday's, I DO have extra T-shirts you know?" giggled Asriel.

"And let me guess, they're all white?" asked Fandom getting out of bed.

"Hey it matches my white fur," said Asriel. "Or is that you're just that you like my fur better than my shirt?"

"Asriel!" Fandom hissed as he blushed.

"I'm joking!" laughed Asriel. "But you know you don't have to be shy, you just have to ask,"

"Not interested," said Fandom walking towards the bathroom. Asriel sighed as she got out of bed. Fandom returned with a toothbrush in his mouth and walked over to the closet and pulled out his cloak.

"Is it alright if I take a shower real quick?" asked Asriel.

"Go ahead," answered Fandom brushing his teeth. After getting everything ready for the day, Asriel and Fandom walked down to the hotel's cafe and ate a quick breakfast before packing. After breakfast, returned to their rooms to finish preparations.

"Ready," said Asriel. Fandom looked over to see her wearing a white sweatshirt under a black run vest. this time she had blue pants instead of the black ones from yesterday.

"Isn't it going to be hard fighting in that?" asked Fandom slipping on his cloak.

"I'll be fine," answered Asriel.

"Not judging," said Fandom adjusting the neck piece. Once they were ready, they dropped off their room key at the front desk and walked out. The sky was dark as the moon shined down. Fandom had forgotten that it was permanent night until things were returned to it's original state.

"This way," Asriel called out to him. Fandom sighed as he followed after Asriel. After walking for some time they eventually reached a small building in the middle of nowhere. Asriel began punching in a code on a panel near the doors as the door opened. "Come on," said Asriel waving him in. Fandom hesitantly entered the building as Asriel followed him in.

"Where are we?" asked Fandom. Looking around he noticed that they were standing on a ramp and below them was several pieces of strange equipment on one side of the room. Looking straight ahead were several screens that ran all the way down where several computers were on.

"You're back," a voice spoke up. Fandom looked up to see a man in a lab coat walking up to them. He had a grey shirt underneath his lab coat and was wearing black pants. His had short brown hair and black eyes that stared at the two intently.

"Fandom this is Professor Nexus," said Asriel.

"So you're one of the seven souls are you?" asked Nexus.

"Yes sir," answered Fandom.

"I bet it was no easy feat trying to free him," Nexus chuckled looking at Asriel. "Welcome to my lab Fandom, this is where I monitor and study all the events that goes on in the dream world,"

"The entire dream world from in here?" asked Fandom.

"That's right," answered Nexus. "The dream world was such a wonderful place, but after HE came into the picture everything lost it's beauty,"

"He?" asked Fandom.

"The true evil, responsible for turning this world into a nightmare," answered Nexus. "Zalgo," Fandom's eyes widened. The name of the demonic entity that lives behind the wall of humanity's sanity.

"Zalgo?" repeated Fandom.

"DO you perhaps know something about him?" asked Nexus.

"He was well known back in the human world," answered Fandom. "To think he would be here of all places,"

"Well he isn't called the one who waits behind the wall for nothin," said Nexus. "Toying with the human's sanity, he can easily control their behavior through their dreams," explained Nexus. "As a doctor studying humanity's dreams, it's my duty to find out why he's become active now of all times,"

"That's when I met him," said Asriel.

"Asriel told me she escaped her game after Zalgo's manifestation spread into Undertale and corrupted the character files turning them into zombie like entities," explained Nexus.

"The Necro Beasts," said Fandom.

"They CAN be saved yes, however it's not that easy," said Nexus. "During my research I've learned that these beasts cannot be eradicated and that they will continue to regenerate even after death,"

"But we can't save the possessed characters unless the Necro Beasts are destroyed," added Asriel.

"Then what do we do?" asked Fandom.

"Destroy the source, find the one who's giving them the power and rid of it from the world," answered Nexus. "By destroying the source, we can repel against Zalgo's dark magic that are emitted from the source itself,"

"And the source is?" asked Fandom.

"The Necro Guardians," answered Asriel.

"However if any normal individual enters a corrupted world, they will alert the Necro Beasts nearby and they will get possessed themselves, however a soul who's determination is powerful enough to repel Zalgo's dark magic cannot be possessed or affected," explained Nexus.

"That's me," said Fandom. "But I was possessed by a Necro Guardian when I came to this world,"

"That was a Necro Guardian, sure they have Zalgo's dark magic, but even if you're determination is strong, if a Necro Guardian has enough dark magic they can still possess the victim," explained Nexus.

"But a Necro Guardian can't possess another soul if they have one in control," said Asriel.

"Because the other six Guardians have souls, the least they can do is afflict harm on you using the current soul," added Nexus.

"But what if my Necro Guardian comes back?" asked Fandom.

"The chances are slim but, if Zalgo's dark magic isn't completely gone from Necro Guardian, they WILL regenerate," answered Nexus.

"But no worries dear, I made sure that wretched demon doesn't come back," Asriel said winking as she wrapped her arms around Fandom. Normally Fandom would feel uncomfortable when she flirted with him but this time he felt relieved.

"Thanks Asriel," said Fandom patting her head. Asriel purred as she nuzzled her face into his shoulder. Fandom smiled and blushed as he rubbed her head and ears.

"Aww such a cute couple you two make," cooed Nexus.

"Wait what?" asked Fandom.

"Isn't he so adorable when he's flattered?" asked Asriel.

"Adorable!?" Fandom stuttered.

"Well now this is perfect, you should take her out sometimes, I know a place or two that serves good dishes," said Nexus.

"Please Professor, it's not like that," said Fandom averting his gaze.

"Well if you ever change your mind don't hesitate to ask me," said Nexus.

"Yeah, um I'll think about it," said Fandom.

"Anyway back on topic, if you're going to save everyone you should probably start heading over to Equestria first," suggested Nexus. "It's the closest world from here and I'm sure they'll be happy if you go assist them right away,"

"Understood," said Fandom.

"Asriel knows where to go, just follow her and you should be able to reach it without having to deal with any beasts for now," said Nexus.

"Lead the way Asriel," said Fandom.

"Ok!" chirped Asriel. She grabbed Fandom's hand and quickly led him out the lab. This was going to be one crazy adventure.